Characters: High School DD: Occult Research Club

aka: High School Dx D-Occult Research Club
Characters belonging to the Occult Research Club of High School DD.

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The Occult Research Club

An extracurricular club that most of the major characters in the series are a part of. Despite the club's name, very little actual research is actually done; after all, the members are not (or in some cases, no longer) human. The club is really just a front for Rias, her "family," and later, other supernatural beings, and it provides cover for their operations; namely dealing with paranormal activity and destroying hostile supernatural beings. The members often use the club as an excuse to get out of any classes they might be in at the moment when an emergency pops up, and the old schoolhouse in which they meet is secluded enough to prevent scrutiny from normal human students.

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    Tropes Relating to the Club in General 
  • A Day in the Limelight: A member of the club is usually the focal point depending on the volume.
    • Volume 1: Issei and Asia's introductions into the devil world.
    • Volume 2: Rias's love life.
    • Volume 3: Kiba's tragic past with the holy sword experiment.
    • Volume 4: Gasper's introduction.
    • Volume 5: Koneko training to control her senjutsu powers.
    • Volume 6: Asia's background with Diodora Astaroth
    • Volume 7: Akeno's strained relation with her father.
    • Volume 10: Issei dealing with Raynare's "curse".
    • Volume 12: Kiba protecting the Club after Issei's departure.
    • Volume 14: Ravel dealing with the Phenex-tear black market.
    • Volume 16: Gasper's life in the Romanian vampire society.
    • Volume 17: Rossweisse's study of 666.
    • Volume 18: Irina's childhood with Issei.
    • Volume 19: Xenovia's work with the student council.
    • Volume 20: Issei and his relationship with his parents.
  • All Women Are Lustful
  • Almighty Janitor: Everyone in the Club, except Rias and Azazel, are low-ranked devils. Rias is currently one of the weaker members of the Club. You do the math. Even after Issei, Akeno and Kiba's promotion, it's implied they are still not promoted to a level which would indicate their strength. Justified by Sirzechs, since he believes they're far from ready to handle the responsibilities and pressures of a high-ranked devil.
  • Badass Crew: Hell yeah!
  • Badass Family: What Rias regards her club as, with her as the "mother" that holds it together.
  • Balanced Harem: What makes this group different from the other tropes is that Issei is a unashamed pervert and a Harem Seeker. However, he is also a Bad Ass Chivalrous Pervert who literally goes through hell for the girls. The girls decide fairly early on that they are ALL going to get with him, and instead of fighting over him, they fight over who he pays the most attention to.
  • Battle Harem: Even if you include Kiba and Gasper. It gets lampshaded by the author himself at one point.
  • Betty and Veronica: Within the Occult Club, we have Asia as the Betty and Rias, Xenovia, and Akeno as the Veronicas for Issei's Archie. Irina, being Issei's Childhood Friend, also acts as a possible Cheryl.
  • Break the Cutie: Almost all the members of Issei's harem after his "death", showing how psychologically dependent they are of him due to his help in overcoming their respective Dark and Troubled Past. Fortunately subverted after he comes back to life with some draconic backup.
  • Dysfunction Junction: Almost every single member of the club has or had issues that needed resolving.
  • Five-Man Band: Their original setup.
  • Gender Bender: In one Volume 13 short story, the entire group (minus Issei) underwent a gender change via Azazel's gender-swapping raygun.
  • Heroic BSOD: Everyone's reaction after Issei's (temporary) death. Rias locked herself up in her room, embracing Issei's Evil Pieces, Akeno lay nigh-lifeless on the sofa, Asia and Ravel are openly crying their eyes out, Koneko tried to keep her composure only to also break down crying, and Kiba had to hold back his tears while having to attend to Ruval and Riser, who offer their sympathies to the team, and later Baraqiel, who came to comfort Akeno. Only Irina, Xenovia and Rossweisse were never immediately in the know, and Gasper was deliberately left in the dark because it'd be too traumatic for him (and when he did, he didn't take it well, but not in the way Georg expected).
  • Non-Indicative Name
  • Moment Killer: Everyone in Issei's harem is this to the others. It can count as a meta-example as well as this is Ishibumi's way of cooperating with the Can't Have Sex, Ever clause in writing this story.
  • Pyrrhic Victory: They did win the Rating Game against the Student Council, but lost a lot of members to pull it off, and their ratings were lowered as a result.
  • Ragtag Bunch of Misfits: They have a devil princess, a modified human, a miko and human/fallen angel hybrid, three very ditzy believers of God, a nekomata, a crossdressing vampire, a mad scientist fallen angel, a money-loving valkyrie, a demon phoenix, and finally a very perverted high school boy turned demon.
  • Single-Target Sexuality: The girls toward Issei for one reason or another. Rias sees all men as the same, Akeno hates men, Asia was too innocent to find interest in the opposite sex, Irina and Xenovia were both raised in church, Koneko dislikes perverted things. However, they seem to all enjoy Issei and all love him to the point they can't live without him.
  • Single Woman Seeks Good Man: The girls keep falling in love with Issei despite his perverted nature because he is a good guy at heart who will literally go through hell to protect them.
  • Switching P.O.V.: The story is usually told through Issei's perspective, though at certain points we see the story through other characters' eyes, namely, Rias, Kiba (secondary narration if there's something going on with Issei), Azazel (when there's a discussion with the leaders involved), Asia for a brief period, and Irina in one of the short stories.
  • The Team: Their current setup.
  • Took a Level in Badass: Throughout the series, as time goes on everyone in the Occult Research Club starts actively grinding levels in badass, especially Issei and Kiba.
  • True Companions: Despite all the girls wanted to be with Issei, they still trust and help each other no matter what happen.
  • Try Not to Die: When Xenovia and Irina were able to get out of the dimension caused by Georg, they tell Issei to survive. Guess what happens to him.
  • Undying Loyalty: To each other. Even from beyond the grave.
  • Unskilled, but Strong: During the Rating Games the Club showed a lack of experience, hence they often don't do so well. This is best exemplified in their match against Souna's group, which almost spelled defeat for them.
  • What Does She See in Him?: With a bunch of really hot babes being head-over-heels for a Lovable Sex Maniac that most girls would typically avoid, this was inevitable.

    Issei Hyoudou 
I'm going to become a Harem king!

Role: Pawn (8)
Species: Human / Reincarnated Devil / Humanoid Dragon
Voiced by: Yuuki Kaji (Japanese), Scott Freeman (seasons 1 and 2), Josh Grelle (season 3) (English)

The primary protagonist, a pervert who gets killed by his first girlfriend, but not before wishing to die in the arms of a beautiful woman — a wish so powerful Rias gets to answer his call and resurrect him as a devil. He dreams of being a harem king, unknowingly already in the middle of being one.
  • Above the Influence: When a despairing Akeno came to him naked and sad, wanting to have sex with him due to her depressing memories of her past and her father Issei refuses despite wanting to have sex with her, as he wouldn't do it with someone who was in such a depressing state.
  • A Boy and His X: A boy and his dragon partner who's sealed in his left arm to be exact.
  • Achilles' Heel: Notable in that he's got twice the number of weaknesses because he's both a dragon and a devil.
  • Action Hero: With a little push from Azazel, he strives for peacenote  by beating the crap out of anyone who interferes with it.
  • Adorkable: A trait that keeps his harem growing.
  • Adult Fear: When he finds out that Koneko, Gasper and Ravel were kidnapped by magicians after they tried protecting an innocent human.
  • Almighty Janitor: In the first season of the anime anyway. He's considered fairly weak compared to the other characters, as he's only a pawn in chess terminology. That said, he can also acquire the powers of the other chess pieces, and due to his Sacred Gear, once he starts training and mastering its use, he becomes quite deadly.
  • Ascended Fanboy: He's a fan of Super Sentai shows alongside Irina, and he finally stars in the "Oppai Dragon" show. He's conflicted, however, between elation and embarrassment over the title, though kids do love it.
  • Ascended to a Higher Plane of Existence: Twice. He is a human reincarnated a devil, and starting with Volume 12, he's got both Great Red and Ophis' existence within him.
  • Awesomeness by Analysis: Took a look at Sirzechs' way of bending his Power of Destruction to hit a specific target, and practiced till he was able to pull it off.
  • Babies Ever After: Not just one, but more than twenty.
  • Back from the Dead: Twice!
  • Badass: Just to count the ways...
    • Almighty Janitor: Starts as the lowest rank devil possible, while having a godeating dragon in his arm.
    • Back-to-Back Badasses: Frequently with Kiba, once with the whole crew
    • Badass and Child Duo: When he and Kunou were the only ones who got together when everyone got separated at Kyoto.
    • Badass Bystander: He had nothing to do with the situation in Kyoto, until his little friends mom was taken...
    • Badass Boast:
      "President Rias Gremory's virginity belongs to me!!" (During Riser and Rias' engagement party)
      "If you want to burn me, bring me a phoenix or a dragon!" (While fighting a fire mage)
    • Badass Creed: Gains this after getting Crimson Queen mode instead of Juggernaut Drive, and is fighting off the original version's creed while chanting it.
      "I, who is about to awaken, am the Red Dragon Emperor who has discarded the principles of ambition. I walk the road of righteousness by having infinite hopes and dreams. I shall become the King of Crimson Dragon. And I promise you all! I shall show you the future that shines in true crimson light!"
    • Badass Finger Snap: When unleashing Dress Break.
    • Badass In Charge: will temporarily step in as leader for Rias/Akeno if they aren't there, and proves fairly effective at it as well.
    • Badass Nickname: Sekiryuutei (lit. Red Dragon Emperor).
    • Badass Pacifist: Would prefer talking rather than beating up his enemies. And that includes the past users of Boosted Gear.
    • Badass Unintentional: He just wants a harem and not to fight at all. Doesn't stop him from being one.
    • Beware the Nice Ones: He's a pretty nice fellow most of the time, but if you push him over the edge... Well, goodnight.
    • Heartbroken Badass: His thoughts reveal that he's still haunted by Yuma/Reynalle's betrayal and his decision to allow Rias to kill her.
    • Submissive Badass: He's even more powerful than any member of his group, but he's still going to follow Rias' orders no questions asked.
    • Underestimating Badassery: Seems like a lot of people think that he's not as badass as he's supposed to be. He proves them wrong all the time.
    • Brought Down to Badass: He temporarily loses his Sacred Gear Powers in volume 14, forced to rely on new dragon abilities and good old fashioned fiticuffs.
  • Battle Couple: With Rias.
  • Battle in the Center of the Mind: Past users of Boosted Gear wanted him to use Juggernaut Drive again. He only gets saved thanks to the power of the children and Irina cheering for him, Sairaorg's encouragement, and one of the past users of Albion, whose consciousness resided in a fragment he absorbed from Vali.
  • Beat Them at Their Own Game: Used Samael's poison from his body when he fought Shalba, infused it with a bullet of Gogmagog he found at the Dimension Gap alongside Ophis and Great Red, and used it against Cao Cao.
  • Berserk Button
    • His biggest one definitely is hurting his harem in any way. He will kill you faster than you could say you're sorry if you do so. Riser and Shalba learned the hard way.
    • Invoked by Vali to make him fight harder, starting with his parents. Rizevim also threatened him with this.
    Issei: (quietly) I'm so gonna kill this asshole. Why should my parents have to die for his damn convenience? Like I would just sit idly by and let him TAKE ANYTHING FROM ME!
    Ddraig: Welsh Dragon! Overbooster!
    Issei: Nobody hurts the people I care about! I don't care who they are!
  • Berserker Tears: Beats the living daylights out of Raynare as tears stream down his face.
  • Big Brother Mentor: Mainly to Gasper as he teaches the kid on how to take a level in badass. Also to Milicas as well.
  • Big Damn Heroes: Shows up Back from the Dead with Great Red and Ophis accompanying him.
  • Bishōnen: After extensive amounts of Art Evolution, he's become one. Coincides with his Character Development as well.
  • Blessed with Suck: A minor example. His power worth eight pawns is a fantastic blessing in most circumstances, but in Ratings Games, where being measured in pawns actually matters, it puts Rias' side at a serious manpower disadvantage.
  • Boom, Headshot: Achieves this in his second fight against Cao Cao, who lost his eye after that.
  • Break the Cutie: His entire Yuma/Reynalle experience — it took several volumes for him to recover fully.
  • Breath Weapon: He learns how to breathe fire after training with Taninmin
  • Brought Down to Badass: Thanks to Ddraig sleeping, he can't access his Balance Breaker state and is back to where he was before. Does this stop him from kicking ass? Hell no.
  • But for Me, It Was Tuesday: Doesn't even remember the shadow-user Elite Mook that he fought at the warehouse when they meet again at Kyoto.
  • Butt Monkey: He's often at the receiving end of the slapstick, usually by either Koneko's Pervert Revenge Mode or Azazel's crazy inventions.
  • Call Back: How he defeats Cao Cao is the same way as to how he defeats Riser: not by pure power, but by being Crazy-Prepared and some Indy Ploy mixed in.
  • Came Back Strong: Ohh yes. He was rebuilt with the flesh of Ophis and Great Red in Volume 12. And what does he do once he returns to the living world? He shows off his newfound strength by growing gigantic with the help of Great Red and decimating the Khaos Brigade without so much of breaking a sweat. Subverted as admittedly it was a one-time use power, and Issei's own abilities were stated to only be somewhat stronger than before (with the caveat that how he could develop in the future was unknown).
  • The Champion: For Rias, he'll do anything.
  • Character Development: Compare Issei from Volume 1 to the current Issei; he's grown a lot in a few months. Best shown when he wholeheartedly entrusts Rias to Kiba's care during their trip to Romania. If this was the old Issei, he'd be jealous of Kiba.
    • Another sign is that at the beginning, Issei thought the purpose of a Peerage is to have his own harem. But he learn later on is that the Peerage is meant for support and battle, and start taking his future and Peerage seriously as he want a team that doesn't shame Rias or her family. Some people even points out that Issei perverted thinking has toned down a bit as he matured and knows what is important during battles.
  • Chest Blaster: What Longinus Smasher's true form looks like.
  • Chick Magnet: He's got (in order of who liked him first) Asia, Rias, Akeno, Koneko, Xenovia, Irina, Ravel, Rossweisse and Ophis. That's not counting the many admirers he has, much less the guys who want him. According to Ddraig, dragons are Chick Magnets.
  • Chivalrous Pervert: As much as he wants to make any moves, he just can't touch Rias because she's too good for someone as lowly as him, and Asia because she's too pure to corrupt easily. Oh, and God help you if you hurt his harem in any way.
  • Clothing Damage: We here at TV Tropes have currently deified him for this trope.
  • Clueless Chick Magnet: As much as he's perverted, he doesn't catch the fact that all of the girls in the club love him. Justified, due to his recurring trauma from Yuma/Reynalle's betrayal.
  • Combat Pragmatist: He'll find a way to beat you no matter what it takes. Dress Break plus a Dragon Blast for girls busy covering themselves, and being Crazy-Prepared with Indy Ploy tactics for boys. If you're weaker than him however, well...
  • Combination Attack: Due to his Gift powers, he's able to amplify his ally's attacks and launch a more powerful version. To wit, he pulled off a Field of Blades with Kiba, amplified Power of Destruction with Rias, amplified Akeno's Holy Lightning and his personal favorite with Gasper: Dress Break during a time freeze.
  • Cool Sword: Gains the Holy Sword Ascalon after Michael gives it to him as a gift.
  • Cool Ship: The Skithblathnir (later named Ryuuteimaru). It's currently in its toy form, but according to MacGregor, it can transform into a giant airship. Or a flying harem palace. This will also depend on Issei's aura.
  • Crazy Enough to Work: Most of his powers are pretty much this.
  • Crazy-Prepared: His entire fight with Riser at the engagement party and his fourth battle against Cao Cao. Hell, any of his fights that involve this trope tend to be a lot more interesting and awesome than others.
  • Crouching Moron, Hidden Badass: He's usually thinking about perverted things, but when push comes to shove...
  • Curb-Stomp Battle: In the beginning, he's the receiver of this. Then he started training and now, he's delivering all the curb stomps to weaker devils. Just ask Diodora or Shalba.
  • Dangerous Forbidden Technique: Longinus Smasher. It's powerful enough to put Power of Destruction to shame. As in capable of destroying the entire Underworld at full power. It also requires Issei to be under Juggernaut Drive, which can prove fatal unless fully mastered. Merging with Great Red allows him to use it without side effects, though Word of God claims this is just a one-off ability. Ddraig later notes that it is an ability he is not supposed to have, hinting it was sealed away by God.
    • Latter, he learns how to use his Wyverns to build up power externally then transfer it to him so that he can use Longinus Smasher, but it's raw destructive power and huge stamina consumption still limits its use.
  • Dare to Be Badass: Delivers this to Gasper when he held the Distress Ball in Volume 4.
    "However, Gasper! It's no use if you don't get up on your own, you know? After receiving encouragement by a girl, next is standing up! Don't you have a wonderful pair of balls on you!?"
  • Dark and Troubled Past: He treats his Freudian Excuse like it was one of these. It's actually hilarious.
    • His past gets a focal point in Volume 20. He was the third attempt of his parents to have a child after two miscarriages, and his inferiority complex stems from an accident that happened in his childhood where he took his dad's fishing rod without permission and broke it, thinking it was all his fault. His love for breasts might be genuine and all, but it's actually a way for Issei to mask his perceived sense of inferiority, and previously, also to (attempt to) cope with his insecurity born over Raynare's betrayal.
  • A Date with Rosie Palms: After Rias appears to him all of a sudden in Volume 2 and then goes back to her home. Thankfully, the anime omitted that little detail.
  • Deadly Upgrade: Juggernaut Drive. Makes him a lot stronger at the cost of his sanity and reducing his devil lifespan by 99%.
  • Deadpan Snarker: He has his moments, normally when talking to Matsuda and Motohama. One particular example occurs when he tells them he's going to ditch them to go to Rias' home (in the Underworld).
    Matsuda and Motohama: "Go to hell, you bastard!"
    (Issei hangs up the phone)
    Issei: "Well, I am going to Hell."
    • He also does it (internally) when Rias can't tell who the Satan Rangers are.
  • Death Glare: He usually receives this to the girls. But if it's from him, you might want to run away pretty quick. Even Sairaorg felt a cold chill in his spine when he sees him do this, even in a Ratings Game.
  • Declaration of Protection: Threaten any of his friends, especially Rias or Asia, and he'll pretty much pull this trope out. Expect a Curb-Stomp Battle if he really does have to fight, even if he gets beat up a little bit first.
  • Despair Event Horizon: Crossed it when Asia "died" the second time. Then he unlocks Juggernaut Drive and eats Shalba.
  • Determinator: Best exemplified with his fight against Raynare and went on from there.
  • Did You Just Romance Cthulhu?: He gains Ophis' affection from the way she clings at him.
  • Did You Just Punch Out Cthulhu?: Gets to land the final blow against Loki. Another occasion is Played for Laughs in Volume 14 where, after doing the Straight Man act for half the time, he finally smacks Fafnir after the latter keeps on sniffing Asia's treasured panties. The trope fits because Fafnir's a dragon king on par with Tannin!
  • Distracted by the Sexy: Initially has trouble learning magic because he kept picturing the various girls naked and it messed with his concentration. Then he decided to roll with it and Dress Break was born.
  • Disappeared Dad: According the spin-off that takes in the future, he himself is one due to constantly being on hero tours to the points that his children don't have a good relationship with him, preferring Kiba over him and his home is falling apart.
  • Does Not Know His Own Strength: As part of his Heroic Self-Deprecation: a notable instance is when he drives himself crazy with worry over the promotion test, which turns out to be a duel between two applicants. Afraid he won't do well, Issei, who by this point had gone toe-to-toe with some serious heavy hitters, resolves to go all-out, despite facing a low-rank, maybe mid-rank devil. It ends poorly for the aforementioned low-rank.
  • The Dreaded: A heroic example. After his "little stunt" of coming Back from the Dead, the Anti-Maou faction has started to fear him because he survived Samael's blood curse, something that should have killed him already. Not to mention, he came back with Great Red's flesh and Ophis' powers.
  • Drop the Hammer: Briefly wields Thor's hammer, Mjolnir, against Loki.
  • Dying Declaration of Love: His final words before he succumbs to the Samael curse: "I love you Rias....." Of course it didn't stick.
  • Dynamic Entry
  • Enemy Within: Rather downplayed compared to other examples, but as of Bor N he's been tormented multiple times by visions of Raynare that mock him.
  • Even the Guys Want Him: It's strongly implied that Kiba and Gasper want to be more than friends with him, and even a harem guy like him is actually disturbed by the implications.
  • Everyone Has Standards: Issei might be an open pervert with active wishes for a harem, but that's because he treasures women. In the anime, when Riser kisses/molests his Queen just to make him jealous, then makes a comment to Rias implying she'd just make a good notch on his belt, Issei is furious. He even outright refused having sex with Akeno while she was in a despair state, believing it won't do any good - but only make her feel even more the blues.
  • Evil Is Hammy: Invokes this (at least in a girl's eyes) whenever he uses Dress Break and Bilingual, especially under Gasper's time freeze. Even Koneko lampshades it that only villains ever get to be that hammy.
  • Expy: Word of God states that he designed Issei after s-CRY-ed's Kazuma, especially where Boosted Gear is located at. Oh, and, he does look like an anime-fied Scott Pilgrim. He can also be considered as the Touma Kamijou to Vali's Accelerator. YMMV on this, but Issei also has shades of Eren Yeager as well (bonus points in that they share the same seiyuu, especially with their learning curve, tendency to rush forward (but later learn to use tactics), and power usage.
  • Fanboy: Of Sairaorg, after witnessing him settle a mess.
  • Fatal Flaw: Issei knows his perversion can and will get the better of him, but he just can't help it. Another Fatal Flaw that was pointed out by Azazel, is that Issei cares too much for his teammate that will make him rush toward a battle without thinking if they got hurt, which could be a problem if he has his own Peerage.
  • Finger-Suck Healing: In the manga, after giving his left arm to Ddraig (turning it into a dragon arm) in order to gain power to beat Riser, he periodically receives this from Rias and Akeno to return it to normal.
  • The First Cut Is the Deepest: Despite his desire for romance, Yuma's betrayal fostered in him a fear of rejection.
  • First Episode Resurrection
  • First Kiss: To Rias in volume 2. Subverted in volume 18 when Irina reveals that she kissed him long before the series starts and he forgot all about it.
  • First Name Basis: He calls everyone in the group, aside from Kiba and Rias, by their first names, although the latter actually wanted to be called "Rias" instead of "Club President". He finally does call her by her first name at the end of Volume 10.
  • Foil: To Vali, for having the greatest Red Dragon-White Dragon library and the fact that their origins and attitudes to their powers are different — Issei was a completely unremarkable boy who's more than willing to talk it out with past hosts of Boosted Gear, while Vali is a descendant of the original Lucifer who's more interested in dominating past users of Divine Dividing. He also has some contradistinctions with Cao Cao — both have companions willing to die for them — except Issei would want to keep them alive, while Cao Cao will do anything, including brainwashing people, for his cause.
  • Four-Temperament Ensemble: The Sanguine, with a slight amount of Phlegmatic leanings.
  • Fragile Speedster: Welsh Sonic Boost Knight gives up armor in exchange for speed.
  • Freudian Excuse: Played for Laughs in a Volume 8 short story where he recalls to the Club an incident as a seven-year-old, when he and other boys listened to an old man teaching them to suck girls' breasts. When he went to see him again, he found him being arrested by cops and later sentenced to ten years behind bars, much to his confusion. Issei recounts that as though it was a Dark and Troubled Past on par with their own traumatic backstories. Koneko is not amused.
    Koneko: "...A man who talks about indecent things to a child... A real pervert. The worst story ever."
  • Friend to All Children: Apparently, children are attracted to him for some reason. This is semi-justified, though, due to the immense popularity the "Oppai Dragon" show has between the young Underworld crowd.
  • God Was My Copilot: Combines with Great Red to Kaiju size.
  • Go Out with a Smile: When he died in the finale of Volume 11, this was the image shown to us.
  • Groin Attack: He gets hit after blocking a speeding ball aimed for Kiba.
  • Half-Human Hybrid: A Human-Devil-Dragon hybrid.
  • Harem Seeker: His ultimate goal after being convinced by Rias.
    • What is interesting to note is that in volume 1, his thought process on having a harem was similar to a certain douchebag but eventually evolves into a benevolent one, if still massively perverted.
  • The Heart: The Occult Club sticks together mostly because of him.
  • Heroes Want Redheads: Out of his harem, he loves Rias the most but he Cannot Spit It Out for fear of destroying their relationship, partly due to emotional damage from Yuma's betrayal.
  • Heroic RROD: Due to his physical limits, he cannot call out Ddraig's full power for more than ten seconds without sacrificing a body part (at least initially). And when he used Juggernaut Drive, his lifespan was cut down to 100 years, so he'd be the first to die of natural causes amongst Rias' team, though this has been nullified following his death and rebirth during Volumes 11-12. And then there's the power he got from Ophis.
  • Heroic Sacrifice: Past users of Boosted Gear sacrificed their souls just to keep his soul safe in Volume 12.
  • Heroic Self-Deprecation: Ohhh, LORDY. Issei more or less spends the time he's not being perverted beating the crap out of himself for his perceived lack of strength. This becomes a plot point in volume 20.
  • Heroic Willpower: Boosted Gear's doubling effect can happen much more frequently than usual when Issei is sufficiently motivated. Early on, being a Determinator was the best thing he had going for him.
  • He's Back: And guess who's with him.
  • Hidden Depths: He's good at sewing, something that surprises Koneko.
    • He's also an excellent sculptor. He managed to make a perfect nude Rias figurine with his eyes closed. This duly impressed his entire class to the point that there was a bidding war over the figure. When he ultimately handed the figure to Rias instead, both she and Akeno were duly impressed. Issei would have happily made one for Akeno also except that both Rias and Asia loudly objected. (Since Akeno basically spelled out her idea of "modeling" right in front of them.)
  • Hormone-Addled Teenager: Duh.
  • Horned Humanoid: After activating Juggernaut Drive the first time.
  • Idiot Hero: Initially, with regards to romance; otherwise he has a lot of common sense and is actually a quick learner.
  • Informed Flaw: Everyone treats him as the weakest holder of Boosted Gear. Initially justified, though he eventually blows these assumptions apart with his rapid progress. Nowadays only the really strong characters, such as Azazel, Vali and Cao Cao still call him a "newbie", and even then they treat that as a compliment, knowing Issei can and will transcend his flaws.
  • Innocently Insensitive: Due to his insecurity about entering into a relationship with Rias and the trauma of Yuma's betrayal, Issei tries to keep himself distant from Rias and only treats her as his master, as opposed to the way he treats the rest of his harem. He finds out the hard way that this attitude was having the exact opposite effect he intended: when Rias asks him what she means to him, he answers that she's his boss. Rias bursts into tears and runs out of the room. It took the other girls's support to have Issei confess to her.
  • Insecure Love Interest: Despite his feelings for Rias, for a long while he was resigned to the idea that she was too far above him to pursue, and she deserved better than some lowly, pervy pawn. This insecurity also stems from Yuma's betrayal, which deeply traumatized him.
  • Intergenerational Friendship: With lots of characters in the series, most of which place his as the younger one, with latest additions being Ophis and Great Red.
  • Intimidation Demonstration: Does this to Diodora when he punches the ground so hard it causes a crater. This pretty scares him out of fighting Issei.
  • Ironic Echo: He promised Koneko that he will never use Dress Break on his allies. The he accidentally uses it on Asia and Koneko in Volume 3, because he was targeting Irina at that time, again to Asia in Volume 6, and against Rossweisse in Volume 9 to surpass her in a friendly duel. The one with Xenovia in Volume 8 doesn't count because it was his clone running loose.
  • Jack-of-All-Stats:
    • Pawns have the secondary ability of "Promotion" if they are deep in enemy territory, just like in real chess. Which allows him to promote himself to any piece except a King, gaining that piece's abilities.
    • Normal Balance Breaker has no weakness but doesn't add any special powers.
  • The Juggernaut: Juggernaut Drive. Duh.
  • Kaiju: When he is resurrected and brings Ophis and Great Red, he combines with the latter and becomes gigantic sized to take out Annihilation Maker monsters. Word of God states that it's a one-time form only.
  • A Lady on Each Arm: After coming back from the dead the girls became more affectionate toward Issei to the point Rias and Akeno grab both his arms while walking to school. Even Asia was thinking of riding on his back.
  • Large Ham: Every single time he uses Dress Break and Bilingual to his female opponents, he will be bringing ham. Just how hammy was when this skill was first used in the anime? He breaks out his devil wings, pulls off a pose fit for a Kamen Rider show, and lets loose with a finger snap. While Ominous Latin Chanting is playing on the background.
  • Let's Fight Like Gentlemen: He insisted to Koneko that he fight Saji in a one-on-one match when Koneko tells him that it's a team battle. He then outright tells Koneko that if Saji wanted to, he could've used his Sacred Gear on her.
  • Living Emotional Crutch: An incredibly large one to Rias, Akeno, and, to a lesser extent, the rest of their team. When he (temporarily) died, Volume 12 starts by showing its devastating consequences on the team.
  • Lovable Sex Maniac: Everyone in his harem loves him and they're alright with his perverted antics. This was also pointed out when Issei lost his perverted nature thanks to Azazel, and the girls wanted him back to the way he was.
  • Love Hurts: It takes him nine volumes to even recover from Yuma's betrayal, and what does he get after confessing to Rias? One volume later, he dies trying to save Ophis.
  • Magikarp Power: How his left gauntlet works. Every ten seconds, his power doubles. Get it boosted long enough and he can even kill any deity. Of course, due to the long preparation, no one's gonna wait for him to power up completely and get their asses kicked.
    • Also applies to him more broadly. Early on he's a bog-standard human with a special ability he can barely even use and quickly realizes he's easily the weakest of Rias' peerage. Later on, with plenty of Training from Hell to help him along, he's become far and away the strongest.
  • Magnetic Hero: He attracts special people like crazy. Practically everybody important in this series had some form of interaction with him. This is actually lampshaded by Sirzechs when he's talking with Azazel.
  • Male Frontal Nudity: In Season 1 Episode 2 and it's uncensored, as a Freeze-Frame Bonus.
  • A Man Is Not a Virgin: Averted, much to his chagrin because he really wants to lose it but can't because of his indecisiveness borne from trauma over Yuma's betrayal.
  • Marshmallow Hell: He's usually the receiver of these from the Club girls, and hoo boy does he love it.
  • Me's a Crowd: Something Azazel experimented on him. Three hundred of him to be exact. And yes, the cover illustration for said short story is a Shout-Out to 300.
  • Meaningful Echo: His Badass Creed, especially about holding both infinity (Ophis) and dream (Great Red), is a lot more significant now that he's got both existences within him.
  • Mighty Glacier: Welsh Dragonic Rook has heavy attack but in this mode speed is lowered.
  • Mistaken for Gay: After Kiryuu spreads a photo of Issei and Kiba singing a duet together, rumors of them having a relationship spread like wildfire. Doesn't help that Kiba sometimes even outright tells Issei that he'll protect him. Issei just thinks he's nuts.
  • Mistress and Servant Boy: He's the servant and Rias is the mistress.
  • Mr. Fanservice: After his Training from Hell with Tannin, he has developed so fit a body half of his female classmates fell for him, his notoriety for his perversions notwithstanding.
  • Multi-Armed and Dangerous: He grows extra limbs, some of which are sword-like, when in Juggernaut Drive.
  • Mundane Utility: How he acquired Dress Break in the first place was to peel vegetables at a distance.
  • Must Not Die a Virgin: The reason why Sairaorg thought he was still alive.
  • Naked on Revival
  • Nice Guy: Despite being a pervert, he's actually one of the kindest, most generous people in the series. Part of the reason why girls are falling head over heels for him.
  • Nice Job Breaking It, Hero: Destroying one of Cao Cao's eyes didn't exactly end well when he gets a rematch with replacing his now-missing eye with Medusa's eye.
  • Ninja Pirate Zombie Robot: A perverted high school student that is both a dragon and a devil.
  • No-Holds-Barred Beatdown: He mostly deals with his enemies this way in-battle, though he'd much rather talk his way out.
  • No One Gets Left Behind: Stays behind the group in Volume 11 to rescue Ophis from Shalba.
  • Normally, I Would Be Dead Now: This trope happens to him so many times that it's not even funny anymore. To wit:
    • Didn't accept a membership flier from Rias' Familiar at the start of the story? He would have been Killed Off for Real by Yuma.
    • Rias didn't rescue him from Dohnaseek, and later Freed? Would have died.
    • Didn't attain Balance Breaker against Kuroka? Would have died.
    • Never used Phoenix tears before his second fight with Cao Cao? Would have died.
    • The Dragon Eater curse would have killed him had Ddraig and Boosted Gear's past hosts had not interfered.
  • Nosebleed: Too many times to count. However, in the later volume, Issei gotten somewhat use to the girls antic and became more calm about it.
  • The Nudifier: Dress Break — anyone he touches, his/her clothes get shredded off. This was declared an illegal move in subsequent Rating Games where, technically, there are no rules.
  • Oblivious to Love: He is even more clueless about his harem's feelings than Natsuru Senou. Justified, due to the psychological damage Yuma has caused him which took several volumes for him to fully recover from.
  • Obvious Rule Patch: Every single time he makes up a new move, the Rating Games always outright ban that move after use the match. Doesn't mean he can't use it outside a Rating Game, though.
  • Official Couple: After ten volumes, he's officially a couple with Rias. Then again, it's not like it ever stopped his harem, nor the fact that he hasn't even fulfilled his dream.
  • OOC Is Serious Business: Normally, he would proclaim his love for breasts, make some smartass comments, and as hot-blooded as possible. However, when he really gets serious, other characters note that he's different from the way he usually is.
  • One-Man Army: Defeats an entire group of middle-class grim reapers, beings stronger than high-class devils, by himself. And this is with him only using Balance Breaker and at this point, he's a lot weaker because he just fired off two Dragon Blasters, and used Gift on Rias and Akeno. This surprises Siegfried as to how strong Issei really is.
  • The Only One Allowed to Defeat You: Inverted. Cao Cao, Vali, Sairaorg and Kiba all express their wishes to defeat Issei one day. Them being all guys, Issei wasn't amused by it.
  • Our Hero Is Dead: Throughout Volumes 11-12.
  • Pals with Jesus: He is the only person Ophis considers a friend.
  • Papa Wolf: To all the younger girls, but especially Asia and Koneko. Just ask Kuroka and Diodora.
  • Person of Mass Destruction: His missed attacks can blow up mountains.
    • Trident Bishop can destabilize artificial dimensions.
    • Kiba even points out later on that whenever they train, it just feels so tiring to train with Issei because one hit from Issei will kill him.
    • The first time he uses Trident Bishop, he would have killed the entire Hero Faction had Cao Cao not saved them.
  • Playing Card Motifs: In the ending theme of the Season 1 anime, there's a playing card theme, and Issei is shown as the Joker.
  • Porn Stash: Thinks he hid it pretty well until his mom blurts out where it's located at. Later on, the girls get to look at said stash, which humiliates Issei even further.
  • Power at a Price: In the beginning (at least with his battle against Riser), he borrowed Ddraig's power at the cost of his left arm, turning dragon-like — not that he minds it, as Rias and Akeno have to do "that sort of thing"note  every couple of days to turn it back to normal.
  • Powered Armor: Balance Breaker: Boosted Gear Scale Mail
  • Power Perversion Potential: Half of his abilities works like this, and he is trying very hard to twist the other half to work that way too, especially in the case of a certain very well endowed angel...
  • The Power of Love: Issei is powered by this... but mostly he's powered by lust.
    • Note that this is not a good thing. The first time it happens is when he thinks Asia has been killed by Shalba. He loses his shit and literally eats the guy alive. Issei on The Power of Love is absolutely terrifying.
  • Punched Across the Room: How he defeats Yuma/Raynare.
  • Rage Breaking Point: While Diodara monologues in Volume 6, he gets angrier and angrier, culminating in an explosion of anger as Issei reaches Balance Breaker and screams "SHUT UP!" when Diodora threatens to rape Asia.
  • Rags to Riches: While he wasn't exactly destitute at the beginning, he was middle-class at best. After his TV show got started, his income skyrocketed. It's currently managed by Grayfia because he isn't ready to deal with that much money yet.
  • "The Reason You Suck" Speech: Delivers this towards Shalba the second time he curb-stomped him.
  • Red Baron: The "Red Dragon Emperor" (by taming Ddraig), "Breast Dragon Emperor" (by attaining Balance Breaker through by pressing Rias' nipples), and "Hero of the Underworld".
  • Red Is Heroic: His Red Dragon Emperor Armor.
  • Red Oni, Blue Oni: The red to Kiba's blue, with the armor mention above.
  • Required Secondary Powers: He needs a lot of stamina just to be able to make Boosted Gear work properly.
  • The Rival: While Vali is more likely his rival thanks to their Sacred Gears, he considers his true rival to be Saji.
  • Rivals Team Up: With Vali against Loki.
  • Roar Before Beating: When in Juggernaut Drive against Shalba.
  • Screams Like a Little Girl: He's the one who screams when he accidentally walks in on Asia while she was in the shower instead of the other way around.
  • Sealed Inside a Person-Shaped Can: Issei is the can to Ddraig.
  • Second Year Protagonist
  • Serious Business: If you want to put on a strip show for him, take out your bra first before your panties. Sairaorg's Bishop found that out the hard way.
  • Shipper on Deck: Ships Saji to Souna, which becomes a bit complicated when he starts calling Souna on a First Name Basis, as well as Shinra/Kiba, which he further enforces once he realizes that the latter is apprently becoming too close to him for comfort.
  • Shoulder Cannon: His Illegal Trident Bishop form.
  • Sickeningly Sweethearts: With Rias. Even referred by Azazel as "that stupid couple".
  • Signature Move: If he's fighting a female opponent, 90% of the time he'll be using either Dress Break/Bilingual/both and a Dragon Shot.
  • Spanner in the Works: Wrecks his opponents' plans like no tomorrow.
    • Reynalle: Punched her in the face so hard she got blown out.
    • Riser: Beats him up at his own engagement party.
    • Souna: Uses Bilingual on her entire team and had their plans found out.
    • Diodora: Defeated Reynalle, thus getting Asia's affection.
  • Spell My Name with an "S": The fan translation of the light novels and recent scanlations use "Ise" for his katakana nickname (イッセー, Issē) to differentiate from his kanji name (一誠, Issei). This is averted in FUNimation's subtitled streams, where they use Issei for both readings.
  • Spit Take: When his mother asks him when is she going to have a grandchild ever since he finally calls Rias by name.
  • Status Buff: How Gift works.
  • Straight Man: When not in pervert mode, he actually becomes this — to Asia and Xenovia when they end up praying and gain damage, to Rias when he recognized who the Satan Rangers were (while Rias thought it was a new enemy), to Bikou and Vali when they thought Mil-tan was a Cat Girl, tried this to Irina when she said she wanted to create a new club but is still joining the Occult Research Club, and to Rossweisse when he lampshades how her immediate reaction to the Clothing Damage she received from Dress Break was to complain about losing her clothes that cost her money instead of immediately covering herself up.
  • Superpower Lottery: Subverted. While one would think that having one of the strongest Sacred Gear that doubles your power every ten seconds would be a big win? Issei himself is utterly talentless and has to compensate by going through Training from Hell to even learn how to use it. Played straight when technically becomes the offspring of both Ophis and Great Red.
  • Technical Pacifist: Never kills anybody even though he beats the crap out of them.
  • Telepathy: He can hear a woman's secrets and plans just from their breasts.
  • Tender Tears: Yes, perverts are able to regard girls as people with feelings, hopes and dreams, not just objects.
  • There Is No Kill Like Overkill: Longinus Smasher with a Great Red powerup against a beast that has a Healing Factor faster than anyone can damage. He obliterated Jabberwocky this way with assistance from Sirzechs' servants.
  • This Loser Is You: Pre Devil Upgrades and even then, Issei is a perverted and unlucky virgin who can't win sometimes.
  • Thou Shalt Not Kill: Made it his creed to never kill anyone, and at worst give people a bloody beatdown. Even fatal attacks in Ratings Games are rendered nonlethal due to its special rules. Eventually subverted, with Shalba (after their second fight).
  • Time to Unlock More True Potential: Well, it is a shounen series after all. Except his is a bit more unconventional than the norm.
  • Title Drop: Since Great Red used his powers to create Issei a body with the help of Ophis, he's now also known as the "Dragon of Dragons" or "DD" who's still in high school; or in short, High School DXD.
  • Took a Level in Badass: Actively grinds millions! Showcased with four of his evil pieces becoming Mutated Pieces
  • Tranquil Fury: He's usually loud and hotblooded, but if he's in this state, you might want to run away pretty quick.
  • Transformation Is a Free Action: Somehow, no one attacks him while he's transforming in Balance Breaker form. Even Sirzechs lampshades that it's a rule to never attack while the opponent is transforming.
  • Transformation Sequence: When he puts on his Balance Breaker for the first time in the anime.
  • Unskilled, but Strong: His main problem once he actually starts getting stronger is that he lacks technique.
  • We Can Rebuild Him: His old body is destroyed beyond repair, so Great Red and Ophis creates him a new, fully draconic body.
  • We Do the Impossible: Summoning a god from another dimension that other gods don't even know about definitely counts.
  • Weirdness Magnet: He even lampshades that he's been attracting a lot of weird people lately.
  • What the Hell, Hero?: He's called out by the other members of his group when asked as to what Rias really means to him. He says "Club Leader" is "Club Leader" and not as "Rias", causing Rias to run out the room crying. The other girls turn around and fix his emotional baggage.
  • When All You Have Is a Hammer: Anytime Issei needs a serious power up, it's always going to be with Rias' breasts. Examples include:
    • Need to attain Balance Breaker when Issei's getting curb-stomped? Push Rias' nipples.
    • Need to get out of Juggernaut Drive? Push Rias' nipples.
    • Having a power-up in the middle fighting the Hero Faction? Push Rias' nipples that are glowing.
    • Already unconscious from a Regulus Nemea-equipped Sairaorg? Have Rias' breasts be glowing in a crimson color.
    • Need to have more firepower when you're so tired after using two Dragon Blasters and Gift? Use Gift on Rias' breasts and have them act as a battery.
  • The Worf Barrage
    • Possibly the weirdest one ever. Dress Break doesn't work on Sairaorg's Bishop because she's willing to strip, thus using said skill would be pointless because ruining a strip show is pretty bad. He then tries to use Bilingual but the only thing that's coming out from her breasts is which piece of clothing she's willing to take off next.
    • A more serious example would be his Balance Breaker Scale Mail. If you could break his armor, then it indicates that you're a threat to him. If you can't, expect to be utterly destroyed in combat with ease.
    • Currently, his Trianna Rook seems to be on its way here. So far, Sairaorg and Grendel have deflected it.
  • Workaholic: He ends up as this in the future, becoming so greatly stuck on his job as a celebrity and ambassador in the Underworld that he doesn't have time neither for his harem nor for his children, leaving Kiba to babysit the latter ones. The degree of neglect is unclear admittedly, as his wives are said to keep him "on a short leash" and he has at least ten kids to divide his free time on.
  • Would Hit a Girl: Piss him off by hurting his loved ones, and gender wouldn't be an obstacle as to who he'll punch.

    Rias Gremory 
My name is Rias Gremory. I am a Devil. And I am your Master. Nice to meet you, Hyoudou Issei-kun. Can I call you Ise?

Role: King
Species: Pure Devil
Voiced by: Yōko Hikasa (Japanese) and Jamie Marchi (English)

The president of the Occult Research Club and the head of the House of Gremory, Rias is a top-ranked devil and Issei's master. She first appears to him after he summons her with his dying words. Taking pity on him, and also because she's interested in his Sacred Gear, she revives him with eight Pawn pieces. Referred to by everyone as "President".
  • Action Girl: Kings are supposed to hang back and command their pieces. Rias prefers to mix it in — and it's not a good thing, because a team loses if their King goes down. Both she and Sairaorg are scolded for this.
  • Action Girlfriend: She appears when Issei summons her in his final moments. She then resurrects him as a devil and becomes his master, love interest and eventual girlfriend.
  • Adorkable: When Rias caught Issei with other girls and tend to act childish about it like getting into a pillow fight with Akeno.
  • Arranged Marriage: Rias was placed into an engagement with Riser Phenex in an attempt to unite their families and to preserve the bloodline of Pure-Blooded Devils.
  • Babies Ever After: In the future she has a son with Issei, named Ixis.
  • Badass in Distress: That is, if you can call the engagement party with Riser being a distress moment.
  • Badass Princess
  • Battle Couple: With Issei. Becomes more so when her breasts act as a battery for Issei.
  • Bedmate Reveal: She sleeps naked with Issei all the time.
  • Benevolent Boss: She loves her subordinates so much she treats them as family rather than employees.
  • Berserk Button: Hurting any one of her servants (or even witnessing other Kings mistreat their own servants) is like inviting a roasting from her. When the three fallen angels she and Akeno are confronted by in Season 1 Episodes 4-5 say how funny they found Issei being taken in by Yuuma and almost killed by her to be, she only waits long enough for Akeno to tell them they picked a fight with the wrong person before she vaporizes all three of them with one fell swoop.
  • Betty and Veronica: The Veronica to Asia's Betty for Issei's Archie when she moved to the Hyoudou residence.
  • Beware the Nice Ones
  • Brainwashed and Crazy: Anime only, Loki's curse causes this in episode 10 of season 3.
  • Breast Expansion: Reversed; restoring Issei with her breasts after Gift being used on them causes them to shrink. Fortunately (for Issei) they grow back after she rests.
  • Calling the Old Man Out: After finding out the dark secret before she became in charge of Kuoh Town, she calls out Lord Bael. Putting that in perspective, she basically calls out someone higher than the president.
  • Can't Catch Up: Gets hit by this hard. Unlike the rest of the club, she doesn't gain any new ability, thus she did not get any stronger than where she was at initially, to the point that she thought of herself as The Load during her and Issei's fight against Sairaorg and his Pawn.
    • Eventually rectified as she does learn or gain various new abilities thanks to absorbing and adapting Issei's aura, such as the finishing move Extinguished Star and her own version of the boosted gear's armor.
  • Clingy Jealous Girl:
    • After falling in love with Issei, Rias tend to get very jealous whenever girls get close to him and even said that Issei belongs to her only.
    • Averted after Issei confesses to her and they start dating; Rias starts to accept Issei's dream of having a harem and doesn't get as easily jealous as before.
  • Club President
  • Cool Big Sis: Lovingly kind or sternly mature as the situation calls for it.
  • Crazy Enough to Work: Her magical breasts work because of this trope, and we here at TV Tropes deified her for that.
  • Crutch Character: At the start, she's the strongest member in the club. As time goes on, she devolves into middle tier (for a while that is). Technically she didn't get any weaker, the others just got stronger more quickly than she did (again, only for a while).
  • Cry Cute: In one scene in Season 1's opening, after Issei rescues her from Riser, and after Issei comes back to life at the end of Volume 12.
  • Deliberately Distressed Damsel: Didn't really want to play as the Damsel in Distress to lure out the remaining Issei clones. Then she gets into it, believing Azazel's suggestion. Sure enough, the Issei clones go and try to rescue her.
  • Embarrassing Nickname: Later on, she becomes known as "Switch Princess", much to her embarrassment, and blames Bikou for it. She is later called the "Crimson Bust Princess" by Azazel in Volume 11.
  • Face Palm: Does this all the time.
  • First Kiss: With Issei.
  • Foreign Fanservice: Although they look to have similar skin tone, after Issei's mother walks in on the pair naked in bed together, she specifically tells his father he's in bed with a foreign girl.
    • Probably has to do with her radiant crimson hair. (While red hair DOES exist in Japan, it's very rare unless it's on a foreigner, and native Japanese with red hair tend to dye it black to avoid ostracism.)
  • Four Girl Ensemble: The Team Mom.
  • Four-Temperament Ensemble: The Choleric.
  • Idiot Hair
  • "I Know You're in There Somewhere" Fight: Anime only, thanks to Loki.
  • Image Song: Crimson No Binetsu
  • Intimate Healing: How she heals Issei's wounds from a Fallen Angel attack.
  • Let's Get Dangerous: After Issei died and returned, she created a new technique, considered too dangerous to use in Rating Games, because it would kill too fast for emergency teleportation to save the victim. Rias mentions she wanted it to be like that, since it's a technique to kill anyone who tries to hurt Issei again.
  • Made of Temptation: Successfully tempts Rossweisse to join the group as teacher and Rook despite her age. Issei notes that she could have a successful career selling insurance... or anything else, really.
  • Magnetic Hero: She has gathered quite a lot of powerful and special people in her group even before meeting Issei. Lampshaded by Sirzechs when talking with Azazel.
  • Meaningful Name:
    • Her surname Gremory is one of the 72 Pillars of the Ars Goetia, and is said to show herself as an attractive woman.
    • Rias' Pawn is a Fairy Chess Piece that can also move sideways. It was proposed as a way to "shake up" the rules of chess, as Issei does for the Rating Game.
  • Mistress and Servant Boy: She is the mistress to Issei's servant.
  • A Mother to Her Men: She really loves her servants; breaking their hearts and making them cry is a one-way ticket to the afterlife.
  • Ms. Fanservice
  • Nice Girl: Despite her strict nature during missions and training, Rias is very kind and caring toward her Peerage than most other masters.That is, if you don't push her buttons.
  • Ojou: The heiress of the Gremory Clan.
  • Onee-sama: Referred to as one of the Two Great Ladies of Kuoh Academy.
  • Out-Gambitted: By Souna.
  • Person of Mass Destruction
  • Playing Card Motifs: In the ending theme of the Season 1 anime, there's a playing card theme, and Rias is shown as the King.
  • Property of Love: As Issei master, Rias calls him her possession and says that he belongs to her only. This was taken Up to Eleven later on as Rias feelings for him grow and doesn't want any girls close to him. This change at Volume 10 as they became a couple and grew to trust him with other girls, even letting him have a date with others and a harem.
  • Purely Aesthetic Glasses: Sometimes wears a pair of glasses, even though she has good vision.
  • Rapunzel Hair: Her most distinctive feature is her long beautiful crimson hair that reaches down to her thighs, with a single hair strand sticking out from the top. Her hair also has loose bangs covering her forehead and side bangs framing her face.
  • Red Baron: "Crimson-Haired Ruin Princess"
  • Red-Headed Heroine
  • Red Is Heroic
  • Red Oni, Blue Oni: Red Oni to Akeno's Blue Oni.
  • Religious and Mythological Theme Naming: Her surname Gremory, is taken from one of the only three female demons (of the 72 demons of the Ars Goetia) — with the other two being a wolf and a mermaid.
  • Risking The King: Being a powerful devil with destruction magic is a double-edged sword when it puts the leader in harm's way. Happens literally in ratings games, where a manpower shortage and her reluctance to let her peerage suffer for her sake lead her to get involved quite quickly. Best shown during the first Ratings Game of the series, where her entire strategy is a glorified diversion so she can take on the enemy king directly.
  • School Idol: Declared as the beauty of Kuoh Academy.
  • Shameless Fanservice Girl: She's willing to be naked in front of her servants, especially towards Issei. While Issei was freaking out and his mother seemed stunned, her response when she walked in on them naked in bed was a polite "good morning" without even trying to cover herself up.
  • She Is the King: Using Chess Motifs, Rias is considered a King because she's the most important person in the Rating Game.
  • Shipper on Deck: Ships Tsubaki and Kiba.
  • Shower Scene: Multiple times, in fact.
  • Sickeningly Sweethearts: With Issei in Volume 11. To the point that they forget people are watching them.
  • Squishy Wizard: She's got awesome magical attack power, but she's terrible at taking hits.
  • Statuesque Stunner: She's 5'8" tall.
  • Strong Family Resemblance: She looks like her mother, but with her father's hair and eye colour.
  • Team Mom: Seriously, she is more of a mother to her servants than a "master" proper.
  • Try Not to Die: Her one order in volume 17 when a group of volunteers protect Sona's school from evil dragons.
  • Violently Protective Girlfriend: Mess with Issei, and Rias will vaporize you.
  • Why Did It Have to Be Snakes?: Camels, actually, according to a short story. One would have to be knowledgeable about the Ars Goetia to understand exactly why this is so funny. note 

    Asia Argento 
Lord. Can you please listen to my wish? Please protect Ise-san forever. Also... Please allow me to continue living with Ise-san...

Role: Bishop
Species: Human / Reincarnated Devil
Voiced by: Azumi Asakura (Japanese) and Chloe Daniels (English)

A former nun who Issei found and befriended while she was looking for a church in town. She gets killed by fallen angels and is revived by Rias as her Bishop.
  • Alliterative Name: Asia Argento. Gamebreaking points for having the same initials as her Japanese voice actress.
  • All-Loving Heroine: Asia loves everyone. Even when she was still a human, she harbored no hate towards Devils and treated everyone equally, regardless of what they were.
  • Amusing Injuries: Apparently her nun training is still pretty well-ingrained. If she's relieved, she usually says something like "Thank God" followed by a whimper of pain since devils cannot pray. However, there's really no excuse for her trying to read The Bible repeatedly even though it has the same effect.
  • Armor-Piercing Slap: Delivers an awesome one towards Diodora when he insulted Issei.
  • Babies Ever After: In the future she has a daughter with Issei, named Airi.
  • Back from the Dead: She is killed during the removal of her sacred gear at the end of Volume 1, but is revived, and subsequently added to the Occult Research Club, by Rias shortly afterwards. This is common knowledge.
  • Betty and Veronica: After Rias moved to the Hyoudou residence in Volume 2, she was the Betty to Rias' (and later Akeno and Xenovia) Veronica.
  • Burn the Witch!: Got branded a heretic when she was discovered to be able to heal not only angels and humans, but also devils.
  • Clingy Jealous Girl: It starts to show up a lot more after Rias moves in with him and her in his parent's house. As a result, if Asia sees Rias doing something perverted, she'll attempt to join in. For example, if she sees Rias naked in bed with Issei, she'll start stripping off her clothes as well.
  • Cloudcuckoolander: Gets better as she becomes more exposed to the world.
  • Contrived Coincidence: Asia was lucky Vali and his group were around at the Dimension Gap looking for Gogmagog, otherwise she would have been Killed Off for Real.
  • Cute Clumsy Girl: In her and Koneko's spinoff manga.
  • Damsel in Distress: Twice in fact. The first time was when Twilight Healing was taken away from her and the second time was when Diodora had her as a hostage. Because of her tendency to become this, Issei and Xenovia eventually made it their vow to premptively crush everything that will pose a threat to her. Her future self is also cursed by Loki and grows weaker every day. Future Asia has also been cursed by Loki, with the kids coming back to both stop him and find a way to save her.
  • Dark and Troubled Past: She was abandoned by her parents when she was a baby at a church doorstep. She was raised in that church and some time during her childhood, she gained the ability to use her Twilight Healing. Unfortunately, when she was discovered to be able to heal not only angels and humans, but also devils, she got branded a heretic and was excommunicated. Said devil, Diodora Astaroth, reappears in Volume 6 to try and steal Asia away from Issei.
  • Disney Death: In Volume 6, she is sent to the dimensional gap by Shalba Beelzebub, a member of the Old Satan Faction. While this motivates Issei to first activate Juggernaut Drive, she is rescued by Vali, who happened upon her body while traversing the void.
  • Doorstop Baby: According to her backstory, her parents left her behind at a church doorstep.
  • First Kiss: With Issei.
  • Foreign Fanservice: She's from Italy.
  • Four Girl Ensemble: The childish one.
  • Four-Temperament Ensemble: Phlegmatic, natch.
  • Green Eyes
  • Hair of Gold, Heart of Gold: Fits the trope to a T. Sweet, innocent, pure-hearted and a faithful Catholic.
  • Healing Hands: The goddess of this trope. She can heal allies at a long distance. If she's near an enemy, the healing aura will just dissolve. She doesn't utilize the Reverse method because it would be risky for the Twilight Healing user (that and she's surrounded by one hell of a Badass Crew anyway).
  • Hime Cut: Has this hairstyle, despite being Italian, not Japanese. It fits her gentle and humble personality.
  • Idiot Hair
  • I Just Want to Have Friends: Thankfully Issei, Rias and their friends are there for her.
  • Image Song: Kagiri Naku Junsui ni Chikai Daten
  • Innocent Fanservice Girl: Is hovering between this when she doesn't realize there's a problem with getting naked in a particular situation and a Shameless Fanservice Girl who fully comprehends what she's doing but does it anyway to achieve her goals.
  • Instant Expert: Picks up demon magic with just a few lessons from Akeno. Then again, it seems to follow a similar process to Twilight Healing, which she's been using all her life.
  • Meaningful Name: Her surname is Italian for "silver", as in silver crosses. She even wears one in her introductory arc before being revived as a devil.
  • The Medic
  • Nice Girl: Asia is possibly one of the kindest characters in the series as she still believe in Issei despite being a pervert and still prays to God despite becoming a devil.
  • No Pronunciation Guide: In the dub, Issei's father pronounces it the way one says it the English manner (AY-sha), while she corrects him in that it's AH-zyah.
  • No Social Skills: Doesn't even know how to make orders from a fastfood chain. Though she gets better over time.
  • Parental Substitute: Serves as a mother figure to Issei's future children.
  • Playing Card Motifs: In the ending theme of the Season 1 anime, Asia is shown as the Joker, like Issei.
  • Power at a Price: For Fafnir to follow her instructions, he just needs a treasure. Unfortunately for Asia, it's her panties.
  • Raised Catholic: She was raised in a church and is a faithful Catholic even after being reincarnated as a Devil.
  • Rapunzel Hair: Her hair goes past her waist.
  • Spell My Name with an "S": Some scanlations often use "Aashia" and "Ashia". Some early promotional material didn't help solve this issue either until they resolved it with her current name.
  • Strong Family Resemblance: With her future daughter Airi, which looks exactly like her, just with more twisted personality which she inherited from Issei.
  • Summon Magic: This is what Azazel advices to Asia so she could catch up with the rest of the team. So he gives her Fafnir. Later, her daughter inherited the Dragon King after her mother was cursed.
  • Supreme Chef: Out of all the harem, Asia is believed to be the best in cooking.
  • Token Religious Teammate: Despite being reincarnated as a Devil, Asia still believes in God and follows His teachings such as praying to Him and reading the Bible.
  • Tomboy and Girly Girl: The girly girl to Xenovia's tomboy.
  • Touched by Vorlons: Is blessed by Ophis to be able to make pacts with Dragons, the first is Fafnir. (Rassei doesn't count as he is a Familiar).
  • Tsundere: Not her, her breasts! Yes, Issei used his new ability to hear what a girl's breasts are saying.
  • Undying Loyalty: After falling in love with Issei, Asia swears that she will always stand by Issei's side forever, and in demon years that is in the thousands. She even declares to join Issei's Peerage when he becomes a High-Class Devil.

    Akeno Himejima 
You look so hot when you're being pleasured, I'm dying to know what you look like writhing in pain~

Role: Queen
Species: Human-Fallen Angel / Reincarnated Devil
Voiced by: Shizuka Ito (Japanese), Teri Rogers (seasons 1 and 2), Kelly Angel (season 3) (English)

Rias' confidant, subordinate and fellow member in the Occult Research Club, Akeno is a half-human, half-fallen angel.
  • The Ace: She is quite skilled and adaptable in combat, to the point that even some of the other characters are fearful of facing her due to her abilities as well as her queen ranking.
  • Action Girl
  • Babies Ever After: In the future she has a son with Issei, named Kurenai. Interestingly enough, she is also the first haremette to have a baby.
  • Berserk Button: Hurt Issei in front of her, and she goes nuts.
  • Blood Knight: Enjoys combat a little too much for comfort.
  • Bunny Girl: Dressed up as one to attract Issei's clones. Naturally, they all fall for it, hook, line and sinker.
  • Calling the Old Man Out: One of the reasons she joined Rias' group.
  • Casual Kink: Yes, she likes BDSM.
  • Cat Fight: She does this with Rias a lot once she falls for Issei too.
  • Chef of Iron
  • Combat Sadomasochist: She takes a great deal of pleasure from inflicting pain in others, and her primary method of doing this is in her combat support role as Rias Gremory's Queen.
  • Cool Big Sis: To the Occult Research Group and by extension, to the entire Academy.
  • Dark and Troubled Past: Oh ye gods. Hers is possibly the worst of the bunch. Her mother died right in front of her when she was a child. Akeno blamed her father for not being able to protect her mother. After the death of her mother, she stayed with her mother's relative before being kicked out due to her Fallen Angel blood. Without food or money, Akeno journeyed throughout Japan using her skills to purify evil spirits that she learned from her mother in order to survive, doing so for a year and a half. When she stumbled into a certain town, Akeno indirectly saved a human that was contracted with a Devil from the Gremory Clan. Fearing that the Devil would kill her due to her Fallen Angel heritage, Akeno decided to hide from them. Later, while trying to leave the town, Akeno was suddenly attacked by her relatives from the Himejima Clan who came to kill her. Before her Grand-uncle could land the decisive blow, Rias and her father's Bishop, Heinrich Cornelius Agrippa, appeared and talked Akeno's family out of killing her. Akeno then moved into the Gremory Palace.
  • Dissonant Serenity: How could she be giggling after killing someone?!
  • Dominatrix: Invokes this for some of her contracted 'clients'.
  • Dull Eyes of Unhappiness: Played for Drama at the start of Volume 12, following Issei's (temporary) death. Played for Laughs in the Hot Springs short story, when she walks in on Grayfia and Issei, coming to the assumption that she has a "real affair" with him, and drops on the floor with hollow eyes.
  • Elemental Powers
    • Shock and Awe
    • Light 'em Up: Her Holy Lightning, which she inherited from her father. She initially hates using these powers until Issei convinces her otherwise.
  • Expy: She surely does look a lot like Kaori Kanzaki. They even share the same seiyuu!
  • Eyes Always Shut: At times...
  • First Kiss: Somewhat with Issei, as she just touch his lips with her lightly.
  • Four Girl Ensemble: The pretty one.
  • Four-Temperament Ensemble: Choleric/Sanguine hybrid.
  • Hair Antennae: A rather unique variant in which they slope backwards, rather then forwards.
  • Hair Decorations: Her orange ribbon.
  • Half-Human Hybrid: Half-human, half-fallen angel (technically a Nephilim).
  • Heroic BSOD: After Issei's (temporary) death, she was seen lying on the sofa, arms limping, devoid of life in her eyes and not responding to Kiba's attempts to talk to her.
  • Heroic Seductress: Rias makes a comment that Akeno would make an excellent succubus. Noted that she only desires to sex up Issei.
  • Hidden Depths: Despite being a tease-happy sadomasochist on the surface, Akeno is surprisingly innocent when it comes to having a true relationship.
  • Hope Spot: Gave one towards the Issei clones before decimating them with her magic.
  • Image Song: Kurokami BEGIN TALE
  • Instant Awesome, Just Add Dragons: After taking in so much of Issei's ki from sucking all that power whenever Issei needs to have his arm back to human form, her powers have evolved to the point that they are dragon-shaped. Let's just say mayhem ensues even more now.
  • It Runs in the Family: Technically, Akeno is a sadomasochist, meaning she can switch between being the giver or taker depending on the situation. She got the masochism from her father, and the sadism from her mother.
  • Lecherous Licking: She elevates this trope into an art form.
  • Miko: Dresses as one when it's time to get really serious. She inherited it from her mother.
  • The Mistress: What she wants to be for Issei. She even actively pursues this. Rias is very aware of her 'plan' and is NOT happy. She is crushed when it seemsthat Grayfia is one for Issei.
  • Ms. Fanservice: Female Fallen Angels are renowned for having very seductive bodies and Akeno's naturally sexy disposition, plus having the largest breast size in the series so far, only enhances this fact. Azazel himself stated that Akeno was particularly seductive even for a Fallen Angel.
  • Ninja Pirate Zombie Robot: A miko who is also a Fallen Angel and a Devil.
  • Number Two: She is the first servant and friend Rias made in the human world.
  • Onee-sama: Referred to as one of the "Two Great Ladies of Kuoh Academy".
  • Playing Card Motifs: In the ending theme of the Season 1 anime, Akeno is shown as the Queen.
  • Purple Eyes: She has violet eyes, which hints at her being half-fallen angel.
  • Rapunzel Hair: Has very long black hair, usually tied in a long ponytail.
  • Raven Hair, Ivory Skin
  • Red Baron: "Priestess of Thunder", and later "Priestess of Lightning" after mastering Holy Lightning.
  • Red Oni, Blue Oni: Blue Oni to Rias' Red Oni.
  • Revenge: She has a grudge against her father, Baraqiel, for her mother's death, joining Rias to exact revenge.
  • Romanticized Abuse: A bonafied sadist, unless it's Issei, at which point she becomes the masochist for him and only him.
  • Sex Is Violence: As noted under Blood Knight above, Akeno really enjoys combat. Some of the expressions she wears in the manga go well beyond "suggestive". It goes without saying that we deified her for this trope.
    • This is one of the few things that had to be toned down in the anime. During the first fight against a stray devil, Rias tell Akeno to back off when she starts torturing it. In the novel, Rias just stands back and waits for Akeno to "calm down".
  • Sexophone: Nearly played straight in Season 2, when Issei has to have his excess dragon ki 'removed' by Akeno. As soon as she enters the room, the music starts... Plenty of sucking to be had.
  • Shameless Fanservice Girl: Akeno, being half Fallen Angel, is very much in touch with her perverted side and has no problem showing off her body in general, but especially for Issei.
  • Skinship Grope: Gropes Rias at the swimming pool of the Gremory household. She also gives quite a few to Issei as well.
  • Smug Super: Always puts up a smile in battle.
  • Soft-Spoken Sadist: Even though she's definitely one of the good guys.
  • Spit-Trail Kiss: In the first season's second short, to Issei; bonus points for being a CPR. It was All Just a Dream.
  • Stepford Smiler: She is usually smiling. However, bring up her Dark and Troubled Past, or harm Issei, and she'll go nuts on you.
  • Stripperiffic: Her Fallen Angel Mode.
  • Strong Family Resemblance: She looks almost exactly like her mother.
  • The Tease: Oh so much. As this is her default setting, even normally innocent teasing can taken as flirty. Azazel noted that even for someone with Fallen Angel blood in her, a race that is naturally very seductive already, she is extremely seductive.
    • As her love for Issei blossoms, she eventually no longer teases him, but flirts with a genuine desire for furthering her relationship with him.
    • One of the first season's short specials entirely revolves around her teasing Issei. Turns out it was all just a dream.
  • Verbal Tic: "Ara ara~" (Oh my~).
  • Virgin Power: Took advantage of this to lure the Unicorn go near her. She then smacks said unicorn and the group takes the unicorn's horn.
  • What Beautiful Eyes: Look for yourself. (slightly NSFW)
  • Yamato Nadeshiko: When not in sadist mode, Akeno come off as a ideal Japanese woman due to her long black hair and gentle smile. Not to mention she is a great cook like Asia and Rias. Akeno is also polite and devoted to Issei and her team. However, Akeno has a fragile personality as she "depend" on men due to her sad past.
  • Yin-Yang Bomb: She is a Human/Fallen Angel hybrid turned Demon.

    Yuto Kiba 
I seriously wont know what will happen when I am within this group.

Role: Knight
Species: Modified Human / Reincarnated Devil
Voiced by: Kenji Nojima (Japanese) and Sean O'Connor (English)

The school prince of Kuoh Academy and Issei's self-proclaimed best friend, Yuto was the lone survivor of a failed project which used a group of children to wield holy swords, and swore revenge on those who disposed him and his friends.
  • Achilles' Heel: He realizes that if his legs are damaged, he'll lose overall combat performance. And it shows during his fight against Siegfried.
  • Ambiguously Gay: A lot of his later interaction with Issei puts his true sexuality in question (at least in the latter's head).
  • Apologetic Attacker: Apologizes to his enemies whenever Issei breaks out a new perverted technique, much to the latter's frustration.
  • Attractive Bent-Gender: In one Volume 13 short story, to Issei's horror, he realizes "Yumi" is his type of girl.
  • Badass
  • Beauty Mark: Under his left eye.
  • Berserk Button: Back in the day, if you present to him a holy sword, watch as he goes batshit insane. Later, mocking Issei's sacrifice to save Ophis as futile becomes a one-way ticket to a brutal beatdown.
  • Bishōnen
  • Bond One-Liner: Delivers an epic one to Freed, after impaling the latter's head with his sword.
    "You can continue howling to the Grim Reaper in Hell."
  • Broken Ace: Has lots of fangirls compared to the unpopular Issei, plus he is intelligent and quite powerful. Despite his cool appearance, it is shown in Volume 3 that Kiba has an obsession with revenge, which makes him hot-tempered and irrational.
  • Broken Bird: Male example, in which he still feels the pain of being experimented upon back during his childhood, even well into adolescence.
  • Bros Before Hoes: This is the counterargument to Kiba's Ho Yay tendencies. May even cross with Bromantic Foil.
  • Chick Magnet
  • Childhood Friend: With Tosca after he is reunited with her as one of the survivors of the Holy Sword project.
  • Covert Pervert
  • Dark and Troubled Past: He was originally a nameless orphan taken in by the Church and was chosen to be a part of a project called "The Holy Sword Project" supervised by Valper Galilei which led to the deaths of all of his friends and other participants when Valper decided to eliminate them, resulting in the latter's hatred of the Holy Swords namely Excalibur. After successfully escaping the facility with the help of his friends, he finally succumbed to the poison he inhaled. Lying on the ground, he was then found by Rias.
  • Defrosting Ice King: During his initial days as Rias' servant, he was distrustful of Rias and all those related to her. One day, when giving tribute to his deceased friends, he was confronted by a stray Devil and fought a hard battle until his master, Okita, came to rescue him. After this event, he finally opened up to Rias and took up the name Rias thought of specifically for him, "Yuuto Kiba".
  • Deuteragonist: Half of the series' point of view is through his eyes whenever Issei is not available.
  • Dual Wielding: And sometimes, triple wielding.
  • Elemental Powers: His swords can do this.
  • First-Person Smartass: Not as much as Issei, but he does have his moments whenever he narrates.
  • Four-Temperament Ensemble: Melancholic/Phlegmatic hybrid.
  • I Owe You My Life: After Issei saves him.
  • Like Brother and Sister: Has this relationship with Koneko.
  • Me's a Crowd: His second Sacred Gear when it was known that a user only gets to use one Sacred Gear at most.
  • The Mind Is a Plaything of the Body: While Yuto is very Ambiguously Gay as a male, when he genderbends to Yumi, the attraction towards Issei is that much more apparent.
  • Mr. Fanservice: Unlike Issei, Yuuto's body is very muscular and fit from the start, plus he wears a pretty tight speedo when swimming or at the beach.
  • Nice Guy: Despite Issei's initial rudeness towards him, he still is as polite and even encourages Issei more so than the rest of the Occult Club with the exception of Rias.
  • Oh Crap!: When Issei first fired his Dragon Shot on him when they were training. He made it. His wooden sword? Not so much.
  • Only Known by Their Nickname: "Yuuto Kiba" is the name Rias gave him, he didn't have a name before that.  Before that, he is called "Izaiya/Isaiah" as his Code Name during the Holy Sword Project stint.
  • Only Sane Man: When club members were spying on Isse's date with Akeno. He was the only one who didn't bother with ridiculous Paper-Thin Disguise (like hat with sunglasses, or wrestler mask) or even trying to remain hidden, and waved hand at him as if he was saying "sorry about this".
  • Parental Substitute: Isseis future children look up to him as a father figure due to always being there for them while their actual father is a celebrity and never home.
  • Playing Card Motifs: In the ending theme of the Season 1 anime, there's a playing card theme, and Kiba is shown as the Ace of Spades.
  • The Mentor: He trains Issei's children in the future, most notably Zen and Ix.
  • The Promise: Issei made him promise that if one of them dies, then they'll have to fight harder for the sake of the one who died. And then Issei did die (temporarily), making Kiba fulfill that promise.
  • Red Oni, Blue Oni: The blue to Issei's red.
  • Revenge: His entire reason for becoming a devil under Rias' service is to find and destroy all the holy swords.
  • Revenge Before Reason
  • Ron the Death Eater: A very rare In-Universe example. Darkness Knight Fang, the Big Bad of the "Oppai Dragon" show, is based upon Kiba.
  • School Idol: Known as the school prince of Kuoh Academy.
  • Stepford Smiler: Throughout the first part of volume 12.
  • Switching P.O.V.: Occurs in several chapters of the Light Novels where the story is told from his viewpoint over Issei's; the switches are usually for chapters that aren't titled Life.
  • Weak, but Skilled: Let's have a checklist: excluding Asia, his best friend is the incarnation of destructive power and all-around badass, his president and vice-president can mow down armies, his fellow club member can create explosions from her BFS, his two juniors, one capable of punching somebody so hard they get knocked out and the other being able to stop time, and his teacher can bombard enemies with magic. Him? Sure he can create any kinds of swords from out of nothing, but other than that, he mostly uses his speed. And yet he's the second most powerful member of the group. He even lampshades that he's the only technique user in a group full of power-types.
  • Wham Line
    "That day, we lost Issei."

    Koneko Toujou 
...Are you thinking of lecherous stuff again, Ise-senpai?

Role: Rook
Species: Nekomata / Reincarnated Devil
Voiced by: Ayana Taketatsu (Japanese) and Jad Saxton (English)

School mascot of Kuoh Academy, one of Rias' earliest members and a Nekomata. She's in the care of the House of Gremory.
  • A-Cup Angst: She reacts violently when Freed calls her a "little girl." She explains that she feels this way about herself when offering to restore Issei's lifespan with senjutsu via sex.
  • Afraid of Their Own Strength: She is afraid of using her Nekomata powers because she fears they will go out of control like it supposedly happened with her sister.
  • Animal Jingoism: She has a cat motif, while Ravel has a bird motif; cats and birds generally get along poorly.
  • Aren't You Going to Ravish Me?: In volume 3, she states that not being looked at pervertedly gives her complex feelings.
  • Babies Ever After: In the future she has a daughter with Issei, named Shirayuki.
  • Badass Adorable
  • Berserk Button: Don't call her "little" or she'll throw things at you. Lots of them, in rapid succession.
  • Big Eater: She's nearly always seen snacking, to the point people worry when she goes a whole train ride without a bite to eat. Despite this, she maintains a tiny frame. Those feats of insane strength must be pretty good at burning calories.
  • Cain and Abel: The Abel to her sister Kuroka's Cain.
  • Can't Catch Up
  • Cats Are Snarkers
  • Cat Girl: In thematic appearance as well as actual lineage.
  • Character Development: She used to get angry over any of Issei's perverted antics and reap Pervert Revenge Mode on him. Now she gets fussy only when his perverseness isn't directed towards her.
  • Crutch Character: She ends up as the weakest combat unit, and eventually asks Kuroka for help to get stronger.
  • Cry Cute: The beginning of Volume 12, after a futile attempt to try to maintain her composure following Issei's (temporary) death.
  • Cute Bruiser
  • Dark and Troubled Past: After losing her parents, she and her older sister, Kuroka, were later taken in by a Devil who reincarnated her sister as one of the members of his peerage. However, Kuroka's power as a Nekomata supposedly soon grew out of control, eventually causing her to kill her master and become a Stray Devil. Following the incident and the failed manhunt that came after, Koneko was sentenced to death by the Devils in hopes of preventing another incident like Kuroka's from happening. However, Sirzechs Lucifer protected her and left her under his sister Rias' care.
  • Defrosting Ice Queen: Initially harsh to Issei, witnessing his determination and strength eventually helps her warm up to him, to the point where she falls in love with him and once even suggested having sex with him.
  • Fantastic Arousal: Goes into heat just like a cat. Unusually for the trope, the fact this is her instinctively trying to get pregnant is actually addressed and, with her tiny frame, acknowledged as a Bad Thing.
  • Four Girl Ensemble: The mannish one.
  • Four-Temperament Ensemble: Melancholic.
  • Glacier Waif
  • Hair Decorations: Wears a black cat-shaped hair clip on both sides of her hair.
  • Hair Intakes: Befitting her cat motif, her hairdo has a pair of "cat ears".
  • Heroic RROD: Her Shirone mode counts as after a few minutes she is exhausted. Although Azazel claims that with time, it won't be a problem.
  • Hidden Depths: She's a fan of rapping and shows it off to Issei.
  • Image Song: Jounetsu-Unbalance
  • Intimate Healing: She does this for Issei in order to recover his lifespan. The fact that she does it happily is a sign of her growing feelings for him.
  • Jailbait Wait: Issei implements this on her for her own safety, because were she to have a child with him at her current size, it would spell disaster for her and their unborn child.
  • Like Brother and Sister: With Kiba.
  • Little Bit Beastly: In her Nekomata form, she grows a pair of white cat ears and a pair of matching white tails.
  • Little Miss Snarker
  • Meaningful Name:
    • Koneko is a good name for a Cat Girl as it is Japanese for "kitten" (more literally "child cat"), while her surname means "castle", befitting her positon as Rook.
    • Her real name, Shirone, means "White Sound", in reference to her hair and tail color.

    Xenovia Quarta 
I will bring judgement upon you with my own hands, in the name of God.

Role: Knight
Species: Human / Reincarnated Devil
Voiced by: Risa Taneda (Japanese) and Lauren Landa (credited as "Ramona Newel") (English)

A former exorcist, Xenovia first appears in Volume 3 alongside Irina to find pieces of Excalibur stolen by a fallen angel.
  • The Ace: She's one of the smartest at her class much to Issei's surprise. This is even more impressive since when she first started attending Kuoh, she wasn't even literate note  and mentions pulling all-nighters so she can learn to read the classwork properly. In the future, she rose up her ante, becoming a headmistress of a cram school.
  • Action Girl
  • Attack! Attack! Attack!: Something Kiba notes that she really needs to get out of. Which finally happens in Volume 14.
  • Babies Ever After: In the future she has a son with Issei, named Zen.
  • Badass Cape: Her white hooded cloak with gold and blue accents.
  • BFS: Durandal is a pretty big sword.
  • Big Sister Instinct: When Asia is taken by Diodora, she vaporizes two devils who got in her way.
  • Boyish Short Hair
  • Cloudcuckoolander: Lacks a lot of common sense.
  • Contralto of Danger: Her normal voice, made even more evident when she practiced "how to be a normal teenage girl"
    Xenovia: (Voice several pitches higher than her usual coarse-and-masculine contralto) Let's get along, 'kay, Issei-kun!
    Issei: That cutesey voice does NOT suit you!
    Xenovia: (Switches straight back to her normal-unfeminine voice) I know, I tried to copy Irina, and it was SO difficult.
  • Cool Big Sis: Becomes an older sister surrogate to Asia.
  • Cool Sword: Current wielder of Durandal.
  • Covert Pervert: The "pervert" part is undeniable. The "covert" part is at best paper-thin. During the short story "300 Isseis", when one of his clones (whom she thought was the real Issei) used Dress Break on her, she got angry not because she got stripped, but because he didn't do anything else to her.
  • Dangerously Genre Savvy: When she first runs into Issei and Asia, she seems to know quite a bit about the latter, such as her having been a saint turned devil. She also mentioned that she was in town to retrieve some holy swords that were stolen by fallen angels, and wanted Rias to promise not to interfere.
  • Defrosting Ice Queen: Initially rude to Asia, herself a former follower of God, until she eventually mellows out to her to the point of becoming an older sister surrogate.
  • Do You Want to Copulate?: She wastes no time in letting Issei know that she wants his genes. She even has condoms on hand for whenever he wants to 'practice'.
  • Dual Wielding: Usually wields Durandal but sometimes she wields it alongside Ascalon whenever Issei lends it to her.
  • Dumb Muscle: A debatably accurate accusation often leveled towards her, much to her annoyance. She entirely lacks finesse or technique in combat, and just powers through, making her the exact opposite of dexterity-oriented Kiba. This leads to a hilarious subversion in Volume 14, when she starts using different Excaliburs. Kiba actually starts shedding tears of joy, and the attacking magicians are dumbstruck that the "power idiot" can use techniques.
  • Early-Bird Cameo: She made a brief appearance in the post credits of Season 1 during the announcement for W.
  • Even the Girls Want Her: Accumulated a lot of fangirls during the Rating Games.
  • Faith Heel Turn: Subverted — even after Rias' team, she still retains her faith in God.
  • Fingerless Gloves: The opera variant in her church battle outfit.
  • Foreign Fanservice: Her nationality is Italian, according to official material.
  • Form-Fitting Wardrobe: Her church battle outfit.
  • Four-Temperament Ensemble: Choleric/Sanguine hybrid.
  • Heel-Face Turn: After finding out that the God of the Bible is already dead, she decides to join Rias' group.
  • Impossibly Cool Clothes: Her church battle outfit.
  • Innocent Fanservice Girl: As Asia, she is hovering between this when she doesn't realize there's a problem with getting naked in a particular situation and a Shameless Fanservice Girl who fully comprehends what she's doing but does it anyway to achieve her goals.
  • In the Hood: Her cape features this.
  • Leotard of Power: And has her sword to back it up.
  • Morph Weapon: Knows how to use Mimic thanks to Irina.
  • Murder Is the Best Solution: Done with any talks before the fight? She'll fire off the first blow before anyone else, much to Issei's consternation.
    • She really wanted to kill Diodora. Shalba beat her to it.
  • No Social Skills: Talks about condoms and having babies to Issei out loud in front of everybody. Needless to say, she doesn't have the slightest social grace.
  • Only One Name: Up until Volume 19, where it is revealed that her full name is Xenovia Quarta.
  • Pillar of Light: What happens when she combines Durandal with Ascalon.
  • Raised Catholic: Like Asia, she was also raised in a Catholic church, hence her lack of experience with the real world.
  • Sensual Spandex: Her church battle outfit
  • Skunk Stripe: She has a green stripe in her otherwise blue hair.
  • Spell My Name with an "S": Xenovia or Zenobia?
  • Student Council President: The main reason why she wants to be a Dumbass No More. She ups the ante by becoming a school headmistress in the future]]
  • Stuff Blowing Up: She does this with her sword.
  • Token Religious Teammate: Share this role with Asia. Being a demon didn't stop her from being religious at all.
  • Tomboy and Girly Girl: Is the tomboy compared to Asia and Irina.
  • Too Many Belts: Has multiple belts on her legs, arms, under her breasts, and even wears one as underwear. Gets taken Up to Eleven in one of the illustrator's artworks where she wears them as a swimsuit!
  • Vapor Wear: Revealed by Irina.
  • Why Did It Have to Be Snakes?: Apparently is afraid of her swordsmaster-turned-Angel, as shown in her short story.
  • You Gotta Have Blue Hair: With a green fringe in front.

    Irina Shido 

Role: Ace of Spades
Species: Human / Reincarnated Angel
Voiced by: Maaya Uchida (Japanese) and Kristi Kang (English)

Issei's childhood friend, she first appears in Volume 3, returning to Japan to look for the Excalibur swords alongside Xenovia. At first, she didn't like the idea that Issei is now a devil, but comes to terms with later. She then joins the club in Volume 6, reborn as an angel in the service of Michael under the designation of "Ace of Spades".
  • Action Girl
  • Babies Ever After: In the future she has a son with Issei, named Shin.
  • Berserk Button: She used to laugh it off, but now she gets ticked off when someone puts "Self-Proclaimed" in front of any of her titles. Especially angel and childhood friend.
  • Big Damn Heroes: Brings a projector that contains the Breast Dragon song Issei had to rehearse midway through Volume 6.
  • Boyish Short Hair: As a child, as shown in the manga.
  • Childhood Friend Romance: She is in love with her childhood friend Issei. Whether she's going to be victorious or not is another story, however the author did promise that everyone was going to get a happy ending though...
  • Cloudcuckoolander: Like Asia and Xenovia.
  • Comically Missing the Point: What does she say when she sees Issei groping both Xenovia and Asia?
    "G... Go do it on a bed! This is too dirty, and the hygiene is terrible in this place!"
  • Cool Sword: she uses an artificial version of Kiba's Holy-Demonic Sword.
    • She later gets Hauteclere, the sword wielded by the friend of Durandal's orginal wielder.
  • Fangirl: She and Issei used to be Super Sentai fans to the point she would pose just to mimic her favorite heroes. She's pleased when her childhood friend gets to have a TV series of his own.
  • First Kiss: With Issei back when they were kids.
  • Forgotten First Meeting: In Volume 14, Issei comments on how he usually forgets that Irina really is his childhood friend, while Xenovia uses this as a chance to call Irina the self-proclaimed childhood friend. Later, despite her inner conflict between sleeping with him and refusing to become a fallen angel, she mentions that there is a way for her to sleep with him without her turning into one but on the condition that their thoughts must remain chaste, among a few other things, while Issei comments how impossible it would be for him to refrain from thinking lewdly while doing such a thing. Despite all of this Michael supports Irina's love for Issei, having gone so far as to create an alternate solution for her predicament in the form of a room that serves as a sort of pocket dimension where the angels' rules wouldn't be in effect allowing she and Issei could have sex in there to their heart's content without risk of her turning into a fallen angel.
  • Forgotten Friend, New Foe: When they have first met again after many years, she was conflicted between kill or sparing Issei, since she's an exorcist and he's a devil. After the Peace Conference. however, this is no longer an issue.
  • Four-Temperament Ensemble: Sanguine.
  • Genki Girl: Not as hyper as some examples, but it's especially evident in the anime, where she's extremely, well, animated. If she's in the forground of any shot, she constantly moving.
  • Girlish Pigtails
  • Idiot Hair
  • Malicious Misnaming: It's a sore point for her if people keep referring to her as a "self-proclaimed angel".
  • Morph Weapon: Her Excalibur Mimic. Though she usually keeps it as a katana for simplicity. She later teaches it to Xenovia.
  • One of the Boys: Used to be a troublemaker like Issei back when she was a kid. So much so the latter was shocked when he discovers, many years later, that his "best friend" is a girl all along.
  • Phrase Catcher: "Self-proclaimed [title used to describe her]". Usually it shows up as "self-proclaimed angel".
  • Proper Tights with a Skirt: As part of her school uniform.
  • Tomboy and Girly Girl: Is actually in between the two characteristics. She's a girly girl to Xenovia but a tomboy to Asia.
  • Tomboyish Ponytail: As a child, in the anime.
  • Valley Girl: In the anime.
  • Workaholic: The war in the Dx D EX future takes it's toll on Irina coming home late at night to collapse on the nearest couch out of pure exhaustion, to the point that she looks to be a future victim of Karoshi.

Do you think a world without God is wrong? Do you think a world without God would decay? I am sorry to say but that isnt the case. Me and you as well are both healthily living like this. The world moves even without a God.

Species: Fallen Angel
Voiced by: Rikiya Koyama (Japanese) and Phil Parsons (English)

Formerly the leader of the fallen angels, he first appears in Volume 4, when Issei mentions that he's one of his primary contractors. He then joins the club as advisor at Souna and Sirzechs' suggestion.
  • The Ace: He's a Mad Scientist that reached several breakthroughs with Sacred Gears and even created an artifical Sacred Gear. He's also an exceptional Badass and leader of the fallen angels. To top it off, he's an extremely successful ladies' man. Needless to say he could be called perfect in every way.
  • All Girls Want Bad Boys: How he's described by Issei.
  • The Atoner: Part of his reason for pushing for the peace conference is the fact that he still blames himself for the unintended consequences of his past orders, such as Reynalle killing Issei (whereas his original order was for her to simply spy on him) and Shuri being killed while her husband, Baraqiel, was on a mission given by Azazel himself, causing friction between him and his daughter Akeno. When father and daughter reconcile, he silently thanks Issei for helping him lift that burden.
  • Authority Equals Asskicking: Well, he is the leader of the Fallen Angel faction. At least, until he retired.
  • Badass: Anyone who could hack their arm without flinching has gotta be hardcore.
    Now then, Vali. What will you do? Shall I go at it again? Even if I have no armor and only one-handed, I can fight with you adequately.
  • Bunny-Ears Lawyer: Like you would never believe.
  • The Casanova: To put it simply, he has a harem. A thousand of them in fact. No, that's not the number of chicks he made out with. He has a thousand harems — and he's made out with every single one of them.
  • Combat Commentator: For the Ratings Game match between Team Gremory and Team Bael.
  • Cool Car: Even has an anti-Dragon missile and a Kill Sat.
  • Cool Teacher
  • Drives Like Crazy: He can drive normally, but he's willing to fire off a rocket-booster on his sports car in narrow roads.
  • Easily Forgiven: It's pointed out that even if she was acting outside her orders, Raynare was Azazel's subordinate and her actions are his responsibility. He admits that's true, but the Khaos Brigade crash the meeting before it can go any further and at that point what he'd bring to the alliance is so valuable the big shots give him a free pass.
  • Expy: Looks like an older version of Kyosuke Nanbu.
  • First-Person Smartass: Whenever the narration goes to him, he's pretty snarky.
  • Four-Temperament Ensemble: Choleric.
  • The Gadfly: Loves trolling Issei for the hell of it.
  • Genius Bruiser: He can kick ass and he can also study how to kick ass.
  • Incoming Ham
    "It's! HERE!" (After remembering Issei and Tannin's conversation after the latter accidentally summoned the breast fairy)
  • Ironic Echo: He warned Issei and the rest of the group not to make enemies of Hades. In volume 12, he, Sirzechs, and Dulio confront Hades to make a complaint.
  • Large Ham: When he has Rias "in hostage".
  • Laser-Guided Karma: He finally gets his comeuppance after making Issei a Butt Monkey, oh so many times, by the entire group. Hilarity Ensues.
  • Mad Scientist: He's devoted to studying Sacred Gears. He got excited after seeing the Nemean Lion Regulus and demands to Sairaorg to bring that to his lab for studying.
    • The basis for replacing his arm with a cybernetic prosthesis, rather than, say, using his Sacred Gear research to heal it, is because he always wanted a robot hand.
  • Major Injury Underreaction: He hacks off his arm using his light attack that supposedly is dangerous for him. He just brushes it off like it's nothing.
  • Mistaken for Terrorist: He's accused of hypocrisy due to being a "terrorist" while suing for peace. Needless to say, he's not amused.
  • Multicolored Hair: His hair fades to a lighter color at the front.
  • Nice Job Breaking It, Hero: Inviting Ophis to Issei's house in hopes that there will be peace could be one, except it was the lesser of two evils. Had he not accepted Vali's request, worse could have happened with The Alliance and they would have never been able to gain Ophis as an ally.
  • Not So Stoic: After seeing Rizevim, he destroys a wall to show how frustrated he is at seeing him.
  • Oh Crap!: When he realizes he's getting ganged up by the group for starting the entire mess of the Issei clones.
    • A more serious one happens when he finds out that Rizevim is now the leader of Khaos Brigade.
  • Powered Armor: He uses it infused with Fafnir's spirit. Unlike other Sacred Gears, his is only artificial.
  • Pre-Mortem One-Liner: To Katerea, after hacking off his left arm.
    "I'll give you an arm at least."
  • Redemption Quest: His motivation for initiating the peace talks and joining the Occult Research Club.
  • Say My Name: When Indra reveals that he knows Cao Cao as a kid, he could only utter out "Indra!"
  • Sudden Spin-off Death Syndrome: It is hinted that he dies in the future and Kurenai continues his research
  • Spot of Tea
  • Staring Down Cthulhu: Confronts Indra — a god.
  • Too Kinky to Torture: After participating in one of Akeno's S&M plays.
  • Trickster Mentor: To everybody, but more on Issei and Vali than everyone else.
  • Tritagonist: If both Issei and Kiba aren't available or if the scene is a very serious matter, then it's usually through his point of view.

    Gasper Vladi 
(after losing it) All of you should be killed. I'll even devour your souls.

Role: Bishop
Species: Dhampyr / Reincarnated Devil
Voiced by: Ayane Sakura (Japanese) and Alison Viktorin (English)

Rias' first Bishop and an extremely effeminate dhampyr who doesn't even want to suck blood.
  • Achilles' Heel: Garlic
  • All of the Other Reindeer: Born of a vampire nobleman and a human woman, Gasper's social life on either side of his lineage is... crapsack, to say the least. Unlike other demon races, vampires value hereditary purity over familial ties, thus he is often the target of discrimination. As a human he fares no better, being feared and despised for his powers.
  • Attractive Bent-Gender: He is so cute that even the guys who know he is a crossdressing boy fall for him.
  • Badass Adorable
  • Beware the Nice Ones: He was kept in the dark about Issei's (temporary) death, because it would be too traumatic. Then Georg just had the gall to taunt him about how senseless Issei's sacrifice to save Ophis was. Cue Gaspar losing it in a grisly scene seemingly ripped straight out of Hellsing.
  • Chekhov's Gunman: Rias had stated back in Volume 1 that she had already used a Bishop piece when she revived Asia. He makes his first appearance in the middle of Volume 4.
  • Cowardly Lion: Normally, he'd be afraid to do almost anything without Issei's help. Until he decides to take a hit for Xenovia, and later when he flips against Georg.
  • Curb-Stomp Battle: Happens anytime he uses his Sacred Gear powers. And when he uses his true powers, Kiba outright narrated that his fight against Georg wasn't even a fight at all.
  • Dhampyr: The child of a vampire nobleman and a human woman.
  • Dude Looks Like a Lady: Taken Up to Eleven in the anime, complete with a incredibly cutesy tone that barely betrays his true gender.
  • Early-Bird Cameo: Like Xenovia, he also made a brief appearance in the Season 1 anime's post-credits during the announcement for Season 2.
  • Even the Guys Want Him: Somehow was able to collect fanboys despite knowing that he's male.
  • Expy: A combination of Seras Victoria and, believe it or not, Dio Brando. For the former, both are friendly neighborhood vampires who are rather shy and submissive, are described as adorable, have grade A Zettai Ryouiki, and brutally snap against the person who had just killed the person that they cared for the most and taunted about that person's death, and during their snapping, both showcase their true power. For the latter, both are blond male vampires lusted after by men in spite of their gender (albeit for different reasons), with the fearsome ability to stop time at will, but replacing Dio's completely reprehensible personality with an adorably sweet one.
  • Four-Temperament Ensemble: Phlegmatic.
  • Fragile Flower
  • Friendly Neighborhood Vampire
  • Future Badass: He's revealed to have evolved Forbidden Balor View into complete Time Master powers and has a different personality that scares Ix.
  • Glowing Eyes of Doom: When he drinks Issei's dragon blood, his full power manifests.
  • Hair of Gold, Heart of Gold
  • Heartbroken Badass: When he finds out that Issei died, and when he finds out that Valerie Tepes, his best friend, is in a coma after overusing the Holy Grail.
  • Hikikomori: Of the agoraphobic variety, to the point that unless inspired by Issei, he will jump into a cardboard box he brings with him at the drop of a hat. Sometimes before the hat drops as well. Issei remedies this by giving him a paper bag with eye holes to help him with this, only for him to quip that Gasper looks like a pervert.
  • Male Gaze: Miyami-Zero and Ichiei Ishibumi sometime treats him this way as if he were actually female instead of ludicrously effeminate.
  • Mr. Fanservice: Especially in the anime.
  • No Social Skills: Thinks crossdressing is perfectly acceptable.
  • Nice Guy
  • Our Vampires Are Different: A cross-dressing vampire to be exact.
  • Red Eyes, Take Warning: He looks like he wouldn't harm a fly until he loses it against Georg.
  • Sealed in a Person-Shaped Can: It's revealed that Gasper's version of Forbidden Balor View contains an actual fragment of the Irish evil god Balor from which the Sacred Gear takes it's name.
  • Shower Shy: He's very uncomfortable bathing with Issei and Yuto and even when Issei forces him to bath with them, Gasper keeps his Modesty Towel on. Issei calls him out on how unmanly he's acting, especially since Gasper wears the towel like a girl.
  • Shrinking Violet
  • Stupid Sexy Flanders: Issei can't seem to think of him as a guy, seeing as he covers himself in a towel from the chest.
    Issei: "What a cruel reality!"
  • Superpower Lottery: There's a reason why his Bishop piece is mutated. Lampshaded by Issei, when he complains about how broken stopping time is. And that's not even counting what he can do without Forbidden Balor View.
    • It goes beyond that. It turns out that his Sacred Gear is an actual fragment of Balor itself, making it a Longinus level.
  • Taking the Bullet: In Volume 10, when Xenovia's ability was sealed during the Gremory-Bael Ratings Game, he used his body as a shield to protect her.
  • Tender Tears: One of the reason Issei just can't stop going Stupid Sexy Flanders over him.
  • Time Stands Still: His Sacred Gear, Forbidden Balor View.
  • Vegetarian Vampire
  • Weaksauce Weakness: Garlic is one of his main weaknesses, something Issei notes that he needs to get out of.
  • Wholesome Crossdresser: Nice, cute, feminine and no one would know he's a boy in a girl uniform if they were not told.
  • Zettai Ryouiki: Grade A


Role: Rook
Species: Valkyrie / Reincarnated Devil
Voiced by: Ai Kakuma (Japanese)

One of Odin's former valkyries, she first appears in the story accompanying Odin in the fifth volume to watch the Rating Games. Turns out, she hasn't even gathered a single warrior for Ragnarok.

    Ravel Phenex 
Role: Bishop (free agent)
Species: Pure Devil
Voiced by: Asuka Nishi (Japanese) and Brittney Karbowski (English)

Riser's youngest sister, first appearing at Rias' first Ratings Game where she was a Bishop, but hardly did anything at all. In Volume 10, she transfers to Kuoh Academy as a first-year, being placed in the same class as Koneko and Gasper, much to the former's frustration.


Ouroboros Dragon Ophis

See Dragons section

Alternative Title(s):

High School Dx D-Occult Research Club