All spoilers regarding Volumes 1 through 7 are unmarked.
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In General
- Absurdly Youthful Parents: Besides Zest and Chisato, Basara and the rest of his harem aren't 18 by the end of the series.
- Babies Ever After: Although the babies are still unborn. But near the end of the series, all of the women are pregnant with Basara's children.
- Battle Harem: Basara is a Stock Light-Novel Hero, Mio at her strongest is a Person of Mass Destruction, Maria can guard Mio and easily defeat Mooks and that is before unlocking her super mode, the Nonaka sisters are Magic Knights, Zest was specifically created to be a warrior, and honorary member Chisato is a fallen goddess whose power can only be active when directly protecting Basara.
- Fire-Forged Friends: All members of Basara's Battle Harem had a personal conflict with each other at one point or another. Basara kicks Mio and Maria out of the house without knowing their whole situation, the Nonaka sisters fight Basara before their Heel–Face Turn, Maria is forced to betray Mio to Zolgia, and Zest serves as Zolgia's minion before siding with the heroes. All of them come out of their situations stronger and unified in purpose and later became True Companions.
- Hero's Slave Harem: Basara establishes a master-servant contract with several women, with erotic and sexual contact explicitly essential to it. The contract prevents a servant from acting or even thinking of disobeying their master's wishes, as it will immediately make them Overcome with Desire to a crippling degree and can only be freed from the desire by their master. It's also demonstrated that other conditions can be met to "punish" slaves, such as teleporting them to another dimension.
- True Companions: You mess with one and you will face all of them.
Basara Tōjō
Basara Tōjō
Voiced by: Yūichi Nakamura (Japanese), Chris Hackney (English)
The son of Jin Tōjō, Basara Tōjō was just starting life as a high school student at Hijirigasaka Academy when he got word that he was going to have two new sistersnote . After setting things straight with them, he has become Mio's protector against the faction of demons who want to strip her of the power granted by her father, the former demon lord.
- Accidental Pervert: He first meets Mio when he accidentally walks in on her in a restroom.
- Affectionate Gesture to the Head: The primary method he delivers non-sexual affection to his Battle Harem is to pat his girls on the head, and they all appreciate it.
- Afraid of Their Own Strength: When he first used his power, he not only annihilated his target, but a good deal of the surrounding area as well. He had not used it since then until Maria and Mio both entered his life.
- All the Other Reindeer: By the time the story begins, he was exiled by his own people for understandably causing the destruction of his home village during the Brynhildr incident.
- An Arm and a Leg: In volume 4, after Sakazuki threatens to kill an unconscious Kurumi, Basara backs off from attacking him. The monster then proceeds to use an attack which severs his right arm, which also, unfortunately, is the arm where he summoned his sword. Basara gets better.
- The Atoner: For inadvertently causing the massacre of his own people during the Brynhildr incident.
- Bathtub Bonding: Invoked. One of the first things Maria does to "strengthen the bonds of trust" between Basara and Mio is to have the two bathe together; she's participating herself as well.
- Beneath the Mask: He wants his girls to follow and service him, sexually or otherwise, from loyalty based on love and trust, not from fear and desperation. This is because he does genuinely love them, dearly. As such, he always projects to them the image of a hopelessly naive Nice Guy who will forgive his enemies, given a chance. In reality, he's domineering, exceptionally possessive, sexually sadistic (as he's let slip on several occasions), and particularly vicious and brutal when provoked. Chisato believes his "darker" nature is the reason Brynhildr likes him so much, and actively seeks to draw it out so he can not only control, but draw out the sword's true power better.
- Big Brother Instinct: Harm his younger sister and you're as good as dead.
- Bigger Is Better in Bed: At the start of the series, he wasn't described as ridiculously endowednote . However, the Master-Servant Contract not only makes the contractors more powerful the higher the contract's level and the more people there are in it, but also makes them more physically attractive. And just like how all the girls of his harem got even more beautiful and endowed as the series went on, especially with the Master-Servant Vow, so too did Basara get more masculine, muscular, and hung with some illustrations even implying just how large it's become. Naturally, the girls learn to get over whatever hesitation they might have very quickly.
- Born of Heaven and Hell: A very interesting example in that Sapphire, a demon, got pregnant with Basara, a hero, but the embryo was transferred to Raphaeline, a god.
- Casual Kink: He's a natural at being the "S" in an S&M relationship. Whether by accident or by design, Maria was correct in making him the "Master" of the Master-Servant pact.
- Category Traitor: Aside from Yuki, the other child survivors of Brynhildr's destruction (because they weren't present at the training grounds) consider Basara one after he inadvertently caused the massacre of his own people during that incident.
- Chick Magnet: Every main girl in the series is attracted to Basara.
- Child of Two Worlds: Or in his case, three worlds. One of his mothers was a demon lord. One was Chisato's sister and therefore a "god." Jin, his father, is a "hero" who is from Earth.
- Classical Antihero: He has a good heart, and it's in the right place, but he's constantly putting himself down for suffering and destruction brought about by things beyond his control, like the Brynhildr incident.
- Covered with Scars: Basara's body is covered in scars, which are quite visible as he has several on his arms. Both Maria and Mio quickly find out that he's actually quite a skilled fighter, and those scars are a testament to the training he's received.
- Covert Pervert: According to Yuki anyway. If her testimony can be believed, prior to his exile five years prior to the story, if she embraced him, he'd embrace her right back and then feel up her butt in the confusion.
- Dangerous Forbidden Technique: Drawing upon the power of his mother's blood gives him enough strength to survive being dunked in lava, and overpower Leohart, but it takes away his ability to reason and destroys his body and soul from the strain.
- Dark and Troubled Past: He accidentally killed several people when he initially awoke his "Banishing Shift". As a result, he and his father were exiled from their home. He's still haunted by it to this day.
- Declaration of Protection: Basara's top priority is protecting his new family.
- Deliberate Injury Gambit: He lets himself get cut so Belphegor would let his guard down.
- Did You Think I Can't Feel?: Basara doesn't show much reaction when his former allies, but especially Takashi, mock him for siding with the demon lord's daughter and resent him for understandably causing the death of many of their other friends. Mio is fully aware that all the taunts thrown at him does in fact hurt Basara, and makes sure that the heroes know it during her What the Hell, Hero? moment.
- Dirty Kid: Although he refuses to confirm or deny Yuki's claim that he loved to feel up her butt whenever she embraced him, he does internally admit that he liked to do perverted things with her when they were both 10 years old, if not younger.
- Distracted by the Sexy: When Shella suggests making a pact with Zest, Basara has a hard time tearing his eyes away from Zest's body. In his defense, she's very attractive, very naked, and in a very suggestive, submissive position.
- The Exile: He was exiled from the hero clan for his role in the Brynhildr incident.
- Exotic Extended Marriage: If he ever sets up shop in the Demon world, he'd certainly qualify. By the end of volume 7, he's in a de-facto marriage with Mio, Yuki, and Zest. Both Kurumi and Maria qualify as concubines. Chisato could possibly be interpreted as a mistress since the rest aren't aware of her at that point.
- Every Scar Has a Story: His thoughts reveal that all the scars he's covered with came about as a direct result of the Brynhildr incident, and his people made them a permanent Mark of Shame as part of his exile.
- Flirty Stepsiblings: With Mio, and definitely with Maria.
- Fragile Speedster: His greatest strength in combat is his raw speed that makes him hard to hit, but if someone or something does hit him, he goes down, hard.
- Gambit Roulette: Turns out the tournament arc was one. By defeating Leohart in the tournament while simultaneously undermining the Demon Council through publicly exposing their sins, and weakening them with the death of Belphegor, the most vocal and insistent on stealing Mio, he eliminated the vast majority of the forces looking to steal Mio away for themselves. Unusual for this case in that Basara knows precisely how big a gamble it is and everything that could go wrong, but goes through with it because he doesn't have any other options.
- Good Is Not Soft: If his loved ones are threatened, he will be as brutal and heartless as he needs to be to remove the threat, permanently. This is something Zolgia discovers to his horror, firsthand, but far, far too late to save him.
- Guile Hero: He's clearly not a typical Shonen hero. Chisato acknowledges that he has an exceptionally keen strategic and tactical mind in volume 4 when it was only sheer luck that prevented Basara's plan from exposing Ornis, and herself.
- Harmful to Minors: When he was at the age of 10, a man with more hatred and Fantastic Racism than sense grabbed the cursed sword Brynhildr out of its sacred holding ground while the Hero Clan's heavy hitters were away, planning to genocide the Demon Race. The sword took him over and tried to make him genocide the Hero Clan instead, starting with the children. Of the children, only Basara and Yuki survived because Basara's power has awakened. When the elders arrived after it was all over, they had no choice but to finally exile Basara.
- Heinz Hybrid: Unlike Mio, The Reveal in Volume 7 shows that Basara is 1/3 demon and 1/3 god due to his Extra Parent Conception. note .
- Heroic Bastard: Considering the "circumstances" of his father and two mothers, he's definitely born out of wedlock. Although this might be subverted after his father managed to free Sapphire and Raphaeline from imprisonment off-screen.
- Heroic Neutral: Basara doesn't want to fight, period. He'd be much happier living with his "sisters," ie, his Unwanted Harem in peace, all as reasonable facsimiles of ordinary high-school students. He fights and kills the antagonists only because they keep coming after him, those he cares about, or both, and refuse to stop trying, no matter how clear it is that he has no interest in them until they go and attack him first.
- Hero with Bad Publicity: He's considered a traitor to the Hero Faction thanks to him inadvertently causing the massacre of most of his clan.
- Hidden Depths: Maria notes that despite his nice demeanor, he has a hidden calling as a "sadistic brute". Best seen when he has to subjugate his servants or when his resistance crumbles away.
- Hot for Teacher: Basara becomes progressively attracted to the first cousin once removed Chisato, who also happens to be the School Nurse. He succeeds in both marrying and impregnating her.
- Impaled with Extreme Prejudice: Basara suffers from this in episode 4. Fortunately for him, it's Only a Flesh Wound, and recovers from it.
- Kissing Cousins: In both the OVAs and light novels especially, he has ongoing sexual relationships with thrice his biological cousins (Mio and Maria) and first cousin once removed, Chisato. The anime only has them go as far as making out and foreplay. It's much more explicit in the light novels, with official scans showing them having full intercourse.
- Large and in Charge: Aside from his father, Jin, (and not taking into account Zest's horns) he's the tallest character in the Tōjō household, and he's clearly the one in charge of the harem, thanks to the nature of the pacts and his own inherent leadership ability.
- Marry Them All: The light novels conclude with Basara consummating all of his relationships in an orgy which results in each of the girls being impregnated. Chisato casts a protective barrier around each embryo, so his harem can continue to have sex with him, without risk of miscarriage. The barrier also ensures they'll all give birth at the same time.
- Missing Mom: His mother passed away a long time ago. Actually, he has two.
- New Transfer Student: He transfers to Mio's school in order to stay closer to her and protect her against demons trying to kill her.
- Ninja Pirate Robot Zombie: 1/4 Human (Hero), 1/4 Demon, 1/4 God, and if we're being generous, 1/4 Dragon.
- Not So Above It All: He spends the first half of the series trying to resist the advances of his cousin, Mio, and the other girls living with him. By season 2, he's accepted it as being necessary to increase their powers and their chances for their survival. In the OVAs and the light novels, he eventually has sex with all of them.
- Past Experience Nightmare: He's introduced as having flashbacks of his Dark and Troubled Past occurring as daily nightmares.
- The Protagonist: He's the central character of the series. It begins, follows, and ends with him.
- Power Limiter: He has three, and with good reason. Breaking the first could easily make him become The Berserker. The second results in a Heroic RRoD, and the last makes him a Person of Mass Destruction with little control over his power, the equivalent of a living Fantastic Nuke.
- The Power of Trust: On the advice of Maria, Lars, and Shella, this is how he uses the Master-servant pact to optimize the fighting strength of himself and his Battle Harem. The more mutual trust that exists, the stronger everyone gets.
- Relative Button: Basara views his Unwanted Harem as his family, especially Mio and Maria, so attempting to threaten them is the one thing that sets him off.
- Ret-Gone: The true danger of his "Banishing Shift" ability. Anything that falls victim to this technique is treated by the universe as if it never existed. Only people's memories of the target remain. For good or ill, this power does not affect actions or consequences that occurred prior to its use.
- Secretly Wealthy: He treats Yahiro to a very expensive meal and calls that "pocket change" from his own savings.
- Sex God: Basara doesn't just engage in sexual acts with his harem, he cares so deeply for each of them that he can make an orgy heartwarming.
- Sexual Extortion: Averted, surprisingly enough. Pact or no pact, the girls have to drag him kicking and screaming into being lewd with them, at least at first.
- Shut Up, Hannibal!: In volume 7, Basara gives one to Belphegor before killing him with his Banishing Shift.
- Someone to Remember Him By: More like "someone to remember her by." Chisato's primary desire to protect Basara comes from the fact that he's living proof that her cousin existed. She later decides to protect him for his own sake.
- Spanner in the Works: Basara unveils the Demon Council's intentions to cause destruction in the Demon Realm as soon as he rescues Mio from Nebra during the latter's assault on the realm.
- Trauma-Induced Amnesia: Basara was unable to remember using Banishing Shift to stop Seito. He was told about it afterward while lying in a hospital bed recovering from the Brynhildr incident. Even in the present day, he's unsure if he actually killed anyone at that time, aside from Seito himself, or if he merely destroyed the corpses Seito himself piled up.
- Traumatic Superpower Awakening: His special ability Banishing Shift awakens when the cursed sword, Brynhildr, is being swung around, inadvertently killing all his classmates and leading to his exile. This is the only thing that allowed him and Yuki to live through the incident.
- We Used to Be Friends: With Takashi after Basara's exile.
- Willfully Weak: Jin reveals that his three power limiters are self-imposed, due to the guilt over the Brynhildr incident.
- Would Hit a Girl:
- Basara does this to Maria to get her off of him while he's in bed during episode 5. He even admits it was a low-blow move. However, he justifies it by stating her being naked inside his shirt and not getting off after he asked her to be even lower. Defied in volume 3, refusing to fight her as he realizes she's being blackmailed into helping Zolgia lest the latter harm or kill Maria's mother.
- Basara is forced to do this against Kurumi in episode 7's duel with the heroes. He tries not to hurt her too much at least.
- You Can't Go Home Again: Basara can't return to the Hero Village due to the Brynhildr incident.
- You Kill It, You Bought It: Brynhildr chooses Basara as its master because Basara killed the host that it was possessing. Basara's had the cursed sword bound to him ever since.
Brynhildr
Brynhildr
The "cursed" sword of the Hero clan. Yes, she has enough tropes to qualify as a character.
- Absurdly Sharp Blade: She can cut through people like paper mache.
- The Berserker: When she takes over, she will inflict this fate on whoever wields her.
- Good Colors, Evil Colors: She glows purple as "evil" and green as "good."
- Good is Not Nice: She's perfectly content to follow Basara's lead whenever she can, and Basara is clearly a good person. When she's offended, and lashes out, she's a raging berserker who attacks without mercy or restraint and doesn't give a flip about collateral damage.
- Heroic Sacrifice: According to Chisato, she became a sword, losing her body and soul, in order to seal away the evil spirit she was sealed away with.
- Only the Chosen May Wield: If Brynhildr doesn't choose you to be her master, and you lay hands on her anyway, the consequences are never pretty.
- Power Glows: She glows every time she manifests her power, and she's very powerful indeed.
- Roar Before Beating: Whenever she's in control of a host, she makes that host roar with rage while committing violence.
- Sentient Phlebotinum: Brynhildr has a mind of her own, she chooses to serve Basara.
- Sharing a Body: As is revealed in volume 7, Brynhildr's consciousness hides inside Basara's mind, watching, and if he's ever rendered unconscious while he's in mortal peril, she takes over.
- Tainted Veins: When controlling Basara, she makes his veins glow green, bordering on Tron Lines.
- The Voiceless: She has no speaking lines, at all. The manga has a possessed Seito growl something along the lines of "damn 'hero' clan," but it's not clear if those are his words, hers, or those of the "evil spirits" she had contained at the time.
- Was Once a Man: Chisato strongly implies that Brynhildr used to be one of the "gods" in the series, and is a close relative of Basara's.
- Your Soul Is Mine!: Brynhildr has the power to steal, and presumably consume, the souls of those it slays. Chisato offers it the soul of Ornis as part of the bargain to bring Basara out of his berserker state.
Jin Tōjō
Jin Tōjō
Voiced by: Keiji Fujiwara (Japanese), Kirk Thornton (English)
The father of Basara.
- Action Dad: He's the father of Basara and is implied to be the World's Best Warrior of the series.
- Adaptation Personality Change: Subtle but profound. In the anime and manga, Jin does offer token resistance to the initial Ship Tease between Mio and Basara, by jokingly telling Basara "don't break any laws." In the original light novel, Jin, not Maria, is the first character to suggest the incoming step-sister would be valid fetish material, and Basara is the one who angrily points out the illegality of the idea.
- Big Damn Heroes: At the conclusion of volume 5, Jin foils Nebra's assault on the demon realm.
- Catch and Return: While battling Leohart, the two of them bounce their energy attacks at each other.
- Crouching Moron, Hidden Badass: He acts like a harmless and clueless goofball. He can terrify the Hero village or a Demon Lord, all by himself, and it is implied that he is the World's Best Warrior.
- Drill Sergeant Nasty: Doesn't go too easy on Basara during their training sessions in volume 5. At one point he even attacked his son with the intention of killing him, in order to help him master his powers faster.
- The Exile: Along with Basara, he was exiled from his home.
- Genre Savvy: He knew of Maria's and Mio's true identity when he met them. He then played along with their attempt to brainwash him, and later reveals to Basara why he felt they needed to be protected. He then sets out to uncover whatever the current demon lord and his faction were attempting.
- Hero of Another Story: Enough to the point he would get his own spin-off series.
- In the Blood: Like Basara, Jin apparently had multiple female love interests, from opposite sides. A minimum of a Love Triangle is confirmed, considering Basara's two mothers situation. When Jin finds out about Basara's situation, he's very proud of his son, and the way he treats his girls.
- Names to Run Away from Really Fast: Being called "The God of War" means that no one should screw with him.
- Poor Communication Kills: Almost literally. If he had been upfront with Basara from the beginning concerning what he knew about Maria and Mio, Basara wouldn't have kicked them out of the house and then have to rush to rescue them when they got swarmed by demons trying to kill them.
- Red Baron: He is known as "The God Of War" by both the demon race and the "hero" clan.
- Smoking Is Cool: Frequently seen with a cigarette and the way he does it oozes class.
- To Be Lawful or Good: When presented with the choice of remaining a "hero" but abandoning Basara to whatever fate exile means(Lawful), or choosing to remain the boy's father, and have his "hero" title stripped away as well (Good), he chose the latter without hesitation.
- You Can't Go Home Again: He can't return to the hero village due to Basara's involvement in the Brynhildr incident.
Mio Naruse
Mio Naruse
Voiced by: Ayaka Asai (Japanese), Lauren Landa (English)
A young girl who happens to be the daughter of the former Demon Lord and holder of his power. She enters Basara's life as a new sister with the promise of her and Maria's mother to wed Basara's father.
- Action Girl: Although she isn't as good due to only having learned about her powers within the last few months, compared to the years of training Kurumi, Maria, and Yuki had, or Zest being literally engineered for magical combat.
- Adaptational Badass: In Burst, Chaos gets sucked into her Unrealistic Black Hole as opposed to being killed by Basara's Banishing Shift.
- Aggressive Submissive: Acts very much "tsun" under normal circumstances, but becomes pretty submissive when her contract activates.
- Anguished Declaration of Love: She professes her love for Basara in volume 7 and it brings him out of his berserker state.
- Animal Jingoism: Cats and dogs can be raised to live in the same family in harmony as True Companions. This is not easy and requires tremendous patience, affection, and tender loving care. This is precisely how the relationship between Basara, Mio, and Yuki evolved.
- Animal Motif: A house-cat. As any cat owner will tell you, cats are so proud and independent as to be almost haughty, yet anyone who gives them sufficient pampering and makes them feel safe will find that they are fiercely loyal and wildly affectionate. There have even been stories of cats who have saved their owner's lives, at great risk to themselves. Yuki even calls her a "thieving, little kitty cat" at the conclusion of volume 3.
- Battle Aura: Generates a flaming red aura when extremely pissed off, which, when used properly, could one-shot pretty much everything.
- Battle in the Center of the Mind: Towards the end of volume 7, she has to go into his mind to help him overcome Brynhildr and free him from his berserker rage.
- Big-Breast Pride: She considers her buxom figure her primary advantage in her attempts to win Basara's affections.
- Buxom Beauty Standard: Numerous characters notice how well-endowed she is.
- Catchphrase: "I'll kill you a hundred times."
- Chekhov's Skill: Her Unrealistic Black Hole that she unwittingly summoned way back in Episode 4 is instrumental in defeating Chaos.
- Clingy Jealous Girl: She really doesn't like to see Yuki's advances towards Basara.
- Cruel to Be Kind: Her initial intentions in brainwashing Basara and Jin out of their house was to keep "innocent humans" from being dragged into her and Maria's fight. To say it backfired spectacularly is an understatement.
- Curtains Match the Window: Red hair and red eyes.
- Damsel in Distress: Mio becomes one due to her being the daughter of the previous Demon Lord. As such, demons hostile to her father want her captured or killed, and the hero village isn't too keen on letting her live either due to the potential threat she may become if she becomes the next demon lord.
- D-Cup Distress: As her breasts keep getting bigger, Mio's clothes stop fitting, and she has to get her underwear and swimsuits custom made, and even then Maria has to use magic to correct the clothing sizes to a comfortable level. While she admits that this was a problem before Basara started massaging them, she is insistent that his "subjugation sessions" make it worse.
- Defrosting Ice Queen: While starting off as pretty Tsundere, she becomes much more openly affectionate to Basara as the series goes on.
- Deuteragonist: She's the secondary focal character of the series, after Basara.
- Electric Torture: She loves to use lightning to torture people who step out of line. Just ask Basara and Zest.
- Elemental Powers: She's shown proficiency with several elemental magics.
- Fanservice Pack: Her breasts grow noticeably, and consistently, bigger through the story, and numerous characters, including herself, lampshade it frequently.
- Faux Action Girl: Not exactly. Due to a serious lack of experience or the skill to control her power properly, she needs to be rescued the vast majority of the time. When she does manage to hold her own, she does so with aplomb, however.
- Fiery Redhead: She has red hair and appropriately enough, she has a hot temper.
- Flirty Stepsiblings: Despite her initial reservations, she's the one who usually ends up in Basara's bed each morning. In time, she begins to wake him up by making out with him.
- Girlish Pigtails: Typically fashioned into twin tails, when she isn't wearing it long, as is typical of immature Tsundere characters like her.
- Hair Intakes: The two "cat ears" that are part of her hairdo.
- Harmful to Minors: Immediately after her father's murder, the usurper, and leader of the radical pro-war faction of the demon clan sent agents into the middle-school where she attended and turned her classroom into a scene out of Dead Man Wonderland and she was Forced to Watch. Maria and herself only surviving by a hair's-breadth.
- Head-Turning Beauty: Both her and Yuki. Averted in volume 12, as Chisato used a divine technique to make her look undesirable to the opposite sex, with the exception of Basara.
- Hidden Backup Prince: Mio learns she's the daughter of the demon king after he's killed off, and a hostile demon faction is intent on finding and killing her. He had her hidden away to live the life of a normal human up to that point. Once Basara also learns of this, he reconsiders having kicked them out of his house after they tried to brainwash him into leaving.
- Human-Demon Hybrid: Half-Human on her mother's side and half-Demon on her father's side.
- Hypocrite: At least at first. She physically attacks Basara at any time he does something she considers perverted, backing it up with death threats, but thinks nothing of barging in on him, waking him up by straddling him, underclothed, on his bed, and refuses to apologize for lashing out at him when she sees various forms of "little sister" porn in his room, even after Maria reveals that she planted it there. She slowly outgrows it, somewhat, starting with beating up Maria when the succubus "accidentally" makes her the "servant" of the contract.
- I Cannot Self-Terminate: When her power runs amok, threatening to create an Unrealistic Black Hole, she begs Basara to kill her first.
- Kissing Cousins: Her relationship with Basara segues from platonic step-siblings/cousins, to master/servant-enforced discipline sessions, to freely participate in orgies with him, and eventually carrying his child and marrying him. Although the whole family tree is still unknown in a few places, one notable part is that Sapphire, Basara's Demon Mother, is her aunt.
- Little Sister Heroine: She's Basara's younger stepsister and a lot of tension and awkward situations arise between her and Basara.
- Ms. Fanservice: The official bust size chart shows Mio has the second-largest breasts in the series, though they're still growing. She's also the one most often featured in Shower Scenes and the one most likely to end up in compromising situations.
- My Fist Forgives You: How does she respond to the fact that Zest had a major hand in putting her through hell at Zolgia's hands? One blast of Electric Torture, no different than what she normally uses on Basara when she thinks he steps out of line, and she considers the matter settled. This is before Zolgia shows up and quite spectacularly demonstrates that Zest was only obeying him for fear of her life.
- Parental Abandonment: Her foster parents died shortly before the beginning of the series. Her biological father is also dead.
- Person of Mass Destruction: She single-handedly annihilated a full-powered "Heroic Spirit" that has the power to easily level a city, by overpowering it.
- Post-Victory Collapse: She faints after beating down the "Heroic Spirit" Nebra was riding.
- Pretty Freeloader: She is rarely shown doing anything housework-related, although given that she's the person the rest of the housemates are protecting that's hardly surprising.
- Property of Love: Not only does the Demon world view her as Basara's rightful property at the end of Volume 7, but she has offered herself to Basara, of her own free will, on several occasions.
- Reluctant Fanservice Girl: Frequently put in this position thanks to Maria and the Master-Slave contract.
- Red Oni, Blue Oni: The red to Yuki's blue.
- Relative Button: Don't mess with Basara if you know what's good for you.
- Screw Destiny: After entering the demon realm and stopping Nebra from causing chaos there, she decides not to succeed her father and continue to live her life as a human, rendering Ramsus's plans for extracting his niece's powers pointless.
- Screw the Rules, I'm Doing What's Right!: Despite being told to stay behind when Nebra attacks the demon realm, Mio still gets to go out and help her friends anyway.
- She Who Fights Monsters: Since the death of her foster parents, just about every human she came across tried to take advantage of her. It all started with the estate lawyer handling her foster parents' inheritance trying to cheat her out of it, and every human who came to her aid from that point on having truly unhealthy ulterior motives. She came to the conclusion Jin was just more of the same after rescuing her from a gang of delinquents. She and Maria thought brainwashing Jin and Basara out of their home was a good idea, as a direct result. She has a bit of a Heel Realization after Basara kicks them out, but then, fortunately, Basara proves her wrong, by saving her life and promising to protect her without asking for anything in return.
- Shut Up, Hannibal!: She gives one to Takashi after hearing him taunting Basara for the umpteenth time.
- Stock Light-Novel Calamity Princess: She's a demon princess with half-up-half-down red hair and powerful magic that she usually uses as fire balls. Her love rival is blue-haired. She also enters a Magically-Binding Contract with the hero as his servant and they have to, er, strengthen their bonds, which of course means participating in ecchi and borderline hentai activities. She is a candidate to be one of the rulers, or at least major players, in the demon world and, when the series begins, seeks to avenge both her birth and adoptive parents after they were killed by the first arc's Big Bad.
- Strangled by the Red String: Invoked and lampshaded. While her affection to Basara does have some merit on its own, it would take much longer, if it occurs at all, without the rather heavy-handed enforced loyalty being delivered by the Master-servant pact. The rest of the harem have various motives and histories that bring about affection to Basara in a more natural manner.
- Strong Family Resemblance: According to Ortega, she's the spitting image of her mother, Ashe.
- This Is Unforgivable!: For the series, she was perfectly willing to give up her power, that she never asked for, maybe even her life, if need be, in order to bring peace to the human and demon worlds, until Nebra deliberately blasted Basara with a "heroic spirit" right in front of her. At that point, she gave up on the idea, permanently, and swore bloody vengeance.
- Took a Level in Badass: At the start of the story, she needs to be rescued from even one lowly mook. By the conclusion of volume 7, she's curbstomping Kaiju.
- Traumatic Superpower Awakening: After seeing Basara struck down in front of her, twice, her magic power goes completely out of control, killing the mook responsible for the second time, and nearly obliterating the town.
- Tsundere: She is prone to outbursts when faced with inappropriate situations such as finding erotic magazines underneath Basara's bed or being left at the mercy of Maria's succubus curse. Despite this, she is also caring and affectionate, genuinely appreciating Basara's kind treatment and protection.
- Unskilled, but Strong: Mio inherited a tremendous amount of demonic power from her father, but she's been aware of it for less than a year and isn't particularly adept at using it.
- Winged Humanoid: While omitted from the anime, the original light novel series shows that she does have wings, and can fly with them.
- You Wouldn't Like Me When I'm Angry!: Deliberately making her angry is not conducive to your long-term health, especially if the cause of her rage is due to harm befalling Basara.
Maria Naruse
Maria Naruse
Voiced by: Kaori Fukuhara (Japanese), Kira Buckland (English)
Mio's 'sister'/retainer.
- Action Girl: Though she stays out of much of the fighting, she can hold her own in a fight.
- Annoying Younger Sibling: Her perverted tendencies tend to annoy Mio for a good reason. After Mio "loosen up" in the later novels, it's downplayed.
- Awesome, but Impractical: Maria's supermode is truly impressive, making her stronger, faster, and more buxom. Now while she's capable of maintaining it for at least a half-hour for engaging in erotic activities, she can only use it in battle for a few minutes, tops, before she's immediately forced out of the mode, and back into her weaker form. To further add to the difficulty in mastering this form, she needs a minimum of 24 hours to gather enough magical or tantric energy to use it again.
- Breast Expansion: She becomes busty when she transforms into a grown-up.
- Bunny-Ears Lawyer: While almost everybody in the Tōjō household tends to find her perverted antics annoying, over-the-top, or both, it is universally accepted that her contribution to the team is far too valuable to dump her.
- Buxom Beauty Standard: The Breast Expansion of her succubi form makes her bustier than Mio, much to Mio's envy.
- Curb-Stomp Cushion: She did manage to land a couple of blows on Lars in the tournament. She took him by surprise using Varga's "punching air" technique, and delivered a punch to his face while in her Supermode. Unfortunately, since she did not have much fighting experience with her altered version, Lars was able to completely outmaneuver her.
- Cute Little Fang: Has one that's relatively noticeable.
- Dirty Kid: Played with in that she has the physical appearance of a child, yet claims to be an adult, but is nevertheless a shameless lecher. Subverted as it's revealed later that she's actually Mio's half sister through Wilbert being his second daughter meaning she's actually younger than Mio although the adult thing may just be that she's considered one by demon standards.
- Does This Remind You of Anything?: Her transformation into her more buxom form, complete with key insertion, seems to involve a lot of moaning and glassy-eyed looks.
- Elegant Gothic Lolita: She usually wears a black frilly gothic lolita-style dress as her casual wear.
- Foreshadowing: Careful observation of her hair decorations reveals the male and female phallic symbols, one on each side of her head. This reveals her nature as a succubus and her bi-sexuality.
- Flight: Her wings aren't just for decoration, they do allow her to fly.
- The Gadfly: She likes teasing and messing people no matter how serious the situation is.
- Girlish Pigtails: As with Mio, Maria also has her hair tied into twin tails, illustrating her bratish personality.
- Guile Heroine: She has a habit of manipulating people to further both minor and major goals, usually forcing Basara and some other character to wind up in a sexual situation. At first, they protest for the sake of decency and annoyance, but later on...they just stop fighting it.
- Heroic Bastard: Unlike Mio's mother, Shelia and Wilbert weren't married when they had Maria after a Birds of a Feather Sex for Solace.
- Hime Cut: Befitting her Elegant Gothic Lolita attire.
- Hoist by Her Own Petard: Maria's perverted antics are often thwarted when Basara or Mio beat the crap out of her. This is Played for Laughs.
- Hour of Power: She can only use her Supermode for a few minutes. When the time runs out, she immediately returns to her weaker and more vulnerable form.
- I Did What I Had to Do: When she is confronted by Basara as to why she didn't reveal the true dangers of the Master-servant contract, and making Basara "the master" from the beginning, she goes on to explain that doing things the way she did was her best available option to guarantee Mio's safety, and preventing her powers from falling into enemy hands by threatening her life with the curse was clearly not part of the plan.
- Interplay of Sex and Violence: At least at first. Her line in her first on-screen battle leaves no room for doubt.Maria:"Is that all? Struggle more unsightly and make me wet!"
- It's All My Fault: Invoked, and rather cruelly by Zolgia. After taking Shella hostage, Zolgia tells her that her birth is what caused her mother, Shella to lose over half her powers.
- Lecherous Licking: Her favorite erotic activities always involve licking in some form.
- Loveable Sex Maniac: She carries a digital camera so she can catch Mio being "disciplined" by Basara at a moment's notice to watch it at her leisure. Also, her imagine spots tend to be wildly explicit.
- Matchmaker Crush: Goes out of her way to have Basara and Mio do dirty stuff with each other. But she soon falls for Basara herself.
- Mugging the Monster: When she and Mio initially get the "bright idea" to brainwash Basara and his father out of their own home, Maria starts blasting Basara around "for being rude to the Demon Lord." He continues to let her think he's "just a normal human" until he has all the information he needs, then reveals that he could have killed the two of them easily if he so wanted. Fortunately for both Mio and Maria, Basara is both afraid of his powers and ultimately quite sympathetic to their circumstances.
- Mystical White Hair: A succubus with white hair.
- Naked Apron: Subverted. When Basara is about to have breakfast while she's cooking, he assumes that she's wearing nothing under her apron. Except that she's wearing her usual uniform under it.
- Older Than She Looks: Maria claims to be an adult, and produces a fake id to show to cops in case she gets stopped on the street during school hours. However, Basara wonders how effective it'll be as she looks younger than him. Later it's revealed that she is actually Mio's biological half sister being Wilbert's second daughter meaning that she's actually younger than Mio is her claiming to be an adult may just be by demon world standards and not earth standards.
- Petite Pride: Has no qualms or feelings of inferiority about her small bust. Granted, she can age up if she wants to, but she actually prefers her smaller form.
- Pint-Sized Powerhouse: She is a Power-type Brawler, according to Basara. She can become even stronger if she unlocks her seal.
- Pointy Ears: She has them in her succubus form.
- The Prankster: She has a penchant for pranks, which often gets her in trouble and results in Mio punishing her.
- Pretty Freeloader: Averted. Even though she seems to spend all day trying to get Basara and Mio to hook up, she does cook and clean from time to time, including patrolling for stray demons at night with Basara.
- Secret-Keeper: Keeps several from Basara and even a few from Mio.
- Sexier Alter Ego: She can transform into a grown, curvy woman that is the extreme opposite of her loli form.
- Sexual Extortion: Played completely straight both with "the curse" aspect of any Master-Servant pact where her attributes and magic are involved and with her use of the "succubus baptism" to which Kurumi is frequently subjected. In her defense, she repeatedly specifies that this is the team's best and safest option to deal with the constant supernatural threats to which they are subjected.
- She's also been on the receiving end when her sister, Rukia, punishes her for setting up Mio and Basara, even if it was to save their mother. She's subjected to a "succubus baptism" and then Basara gives her some Kinky Spanking.
- Shameless Fanservice Girl: Does not mind showing off to Basara. Or more likely, forcing Mio into compromising situations.
- Spock Speak: Well-spoken at all times.
- Squeaky Eyes: While teasing Basara over her wearing an apron with her clothes on, she blinks her eyes twice.
- Stripperiffic: She wears a very revealing outfit in her succubus form.
- Strong, but Unskilled: Well, better than Mio in combat at least. But she doesn't fare very well against Lars during their duel in volume 7 since she relies heavily on physical attacks which he easily evades
- Succubi and Incubi: She is a succubus, which is why she has access to all sorts of Sex Magic.
- Supreme Chef: Possibly the best of the Tōjō household. She's even been known to make ordinary panties edible.
- Suspiciously Specific Denial: She does this all the time when she wants to hide something without outright lying. The most prominent example is when she has Basara feel up Mio at the time the Master-servant contract goes awry.Maria:"Please bear with it a bit longer, Mio-sama. Right now, Basara-san will make you feel better— yes, better indeed. It is by no means because I, a succubus, want to see you fall into pleasure or anything. Now then, Basara-san, please touch Mio-sama's embarrassing places already and make her feel better."
- Take a Third Option: At the end of volume 3, when she witnesses Basara caught in a Lover Tug of War between Yuki and Mio, with both girls demanding her support, she decides to kiss him instead of supporting either of them.
- The Tease: Being a succubus, Maria naturally likes to tease Basara and she also enjoys getting him in perverted situations.
- Token Mini-Moe: The youngest-looking character in the main cast.
- Trickster Mentor: Her lesson plan is genuinely for the benefit of Basara and his Battle Harem, but her primary goal is her own sexual gratification. Ergo her "lessons" invariably have her poking, prodding, teasing, tricking, and entrapping everyone in the Tōjō household, bar Jin, into engaging in heavily explicit sexual activity, that she's determined to capture on video for later perusal at her leisure.
- Underboobs: The outfit of her succubus form leaves the undersides of her breasts exposed.
- Winged Humanoid: She has wings in her succubus form.
Yuki Nonaka
Yuki Nonaka
Basara's childhood friend who hails from the Hero Tribe. She is in love with Basara and often butts heads with Mio over his affections. She is one of the observers watching Mio.
- Accent Slip-Up: Occasionally slips into an Osaka dialect.
- Action Girl: It doesn't take long to show that she's quite a capable and competent hero.
- A-Cup Angst: Subtle but present. While she doesn't bother trying to compare her chest to Mio's, she's instantly offended when Kurumi mentions her breasts are bigger, to the point that she happily agrees with Maria to have Basara "force Kurumi to submit," pact or no.
- Animal Jingoism: As mentioned in Mio's entry, dogs and cats don't get along easily, but it can be done, and that's precisely how the relationship between her and Mio operates.
- Animal Motif: A dog. Dogs are known for being loyal, long-suffering, territorial, protective, and fiercely vicious when their anger is roused, or either they or their charge are threatened.
- Beneath the Mask: She puts forward the air of an Indifferent Beauty. In reality, she is a Hormone-Addled Teenager that really, really wants to do erotic things, especially with Basara. In fact, her disappointment was palpable when she hugged Basara for the first time in years, and he didn't feel her butt up in return like he used to
- Childhood Friend Romance: She is in love with her childhood friend Basara.
- Class Representative: She's the representative of her and Mio's class.
- Clingy Jealous Girl: Whenever she finds out that Basara did something perverted with Mio, she'll often try to have him do the same thing to her.
- Expressive Hair: Her Idiot Hair twitches when she's offended.
- Forgotten First Meeting: The first thing Yuki does when introduced to Basara after he transfers to her and Mio's school is to give him The Glomp. In front of the class and Mio. She then reminds him of who she was, and he then vaguely remembers her.
- Head-Turning Beauty: Both her and Mio. Averted in volume 12, as Chisato used a divine technique to make her look undesirable to the opposite sex, with the exception of Basara.
- Heel–Face Turn: After Basara defends Mio from Takashi, Yuki leaves the Hero clan altogether to join Basara.
- Idiot Hair: She has a long cowlick that stands prominently atop her head.
- I Owe You My Life: In return for Basara saving her life during the Brynhildr incident, her family pleaded on the boy's behalf. This is the primary reason why he's not locked up in a cave somewhere at the start of the story and became The Exile. This explains why she's so conflicted in her duty concerning watching Mio when she noticed Basara get involved.
- Magic Knight: As a part of the Hero Tribe, Yuki is able to summon a spirit sword and manipulate the weapon's energy to form armor around her limbs.
- Male Gaze: More often than not, shots of her big butt are often shown.
- Pretty Freeloader: Averted, though the only times she seems to do housework are when she's trying to prove herself a more suitable housewife than Mio.
- Rei Ayanami Expy: Short light blue hair, yellow eyes, supernatural origins, stoic demeanor, and Sugar-and-Ice Personality.
- Rescue Romance: Though it's probable she liked Basara before, she definitely falls in love with him after he protects her from the attacker during their younger years. She is certainly happy when she sees him using that same power year later, but controlling it much better than the first time he used it, in order to continue protecting people.
- Shameless Fanservice Girl: She loves to bathe with Basara. So much so that she has no compunction against breaking into his house and/or blackmailing him into it.
- Shy Blue-Haired Girl: Blue-haired and relatively serious and reserved, though very flirty around Basara.
- The Stoic: Most events don't impact her calm personality much.
- Sugar-and-Ice Personality: Yuki is usually calm, serious, and reserved. Whenever she's around Basara, she becomes affectionate and flirty.
- Supernatural Gold Eyes: Her eyes are yellow, a hint that she's a member of the Hero Tribe that opposes Demons.
- Supreme Chef: She's an excellent cook and none of those who taste it have any complaints.
- To Be Lawful or Good: She was put into this dilemma when Mio went from "observation" to "termination" as a target, not only because Yuki's aware that Mio's a complete innocent, but because it forces her to draw her sword on Basara, to whom she owes her life.
- Token Good Teammate: She is this for the Hero Tribe pre-Heel–Face Turn. While all the other Heroes are so far introduced by insulting and looking down on Basara for his "betrayal" against them, Yuki is the only one who introduces herself to him warmly and is fully aware that Basara never betrayed the village. If anything, it's the other way around.
- True Blue Femininity: When she has a choice in her wardrobe, she invariably dresses herself in blue, and she's very effeminate.
- Weak, but Skilled: In contrast to Mio who has insane levels of magic power, or Maria who has insane strength, but neither of which can fully control it, she has the ordinary magical and physical strength of a human, but so much raw skill in its application that she does far better in the initial fight with Lars than either of them, and in fact manages to initially trounce Mio in single combat.
- Wounded Gazelle Gambit: She fakes being ill, about to faint due to "demon particles" during their visit to the Demon World, hoping Basara would catch her. Mio not only catches her instead but calls her out on it.
Kurumi Nonaka
Kurumi Nonaka
Voiced by: Iori Nomizu (Japanese), Cindy Robinson (English)
Yuki's little sister who is also from the Hero Tribe. Initially antagonistic towards Basara after meeting him, she changes her attitude and joins his household in the second season.
- Berserk Button: Any implication, real or imagined, that she's a child will set her off immediately.
- Butt-Monkey: Maria toys with her constantly.
- Complaining About Rescues They Don't Like: Her response to Basara rescuing her from a possibly fatal fall out a window? Why yelling at him, and calling him stupid.
- Damsel in Distress: She is subjected to this in volume 4 after she's ambushed by the Monster of the Week at school.
- Dark Is Not Evil: When Rukia gives her a gem that allows her to use "demonic" powers, running on the Darkness element, she still remains a good and heroic character.
- Defrosting Ice Queen: She is antagonistic towards Basara at first, but soon begins to warm up to him.
- Elemental Powers: Although powered by spirit magic as opposed to demonic, she's a powerful elemental magician similar to Mio.
- Heel–Face Turn: She turns on the Hero clan after Basara defeats Takashi.
- Heel Realization: Was at first just as antagonistic like the other heroes who hold Basara responsible for understandably killing their friends during the Brynhildr incident. After she hears Basara weakly apologizing to his former friends while unconscious, she realizes that he has it just as bad as they do, if not moreso.
- If It's You, It's Okay: The only girl she'll have any one on one sexual encounters with is Maria. Orgy scenes with Basara are a different story.
- Little Sister Instinct: She's very protective of her big sis, Yuki. In fact, most of her early antagonism to Basara was due to his involvement in the Brynhildr incident.
- Not Quite Flight: She can ride tornadoes to allow her or any passengers she chooses to hover mid-air.
- Not So Above It All: The ending credits of the season finale of Burst show her watching the erotic videos Maria filmed of the sexy hijinks in which the harem engages with Basara, including herself, and with great interest.
- Pretty Freeloader: She doesn't seem to do much around the house either, but she's just visiting to check up on her sister Yuki's well-being. Then again, that visit seems to have gone on for a while.
- The Resenter: Despite having given permission beforehand, she still couldn't bring herself emotionally to accept Zest having a pact with Basara while she couldn't. One threesome with Basara and Zest later, granting her a Deus Sex Machina of her own, she gets over it.
- Vitriolic Best Buds: With Maria.
- Worf Had the Flu: Her loss to Admirath was only because the latter was implying that Basara was a hostage, as is quickly revealed in their "rematch."
Zest
Zest
A Demon who initially served her creator, Zolgia. After Zolgia's defeat, she serves Shella (Maria's mother) before ultimately serving Basara.
- Action Girl: She was initially Zolgia's primary muscle, and her prowess in combat naturally transferred over to Basara's side.
- The Ace: In the light novel, when she shows up, and informs Lars that she's there to watch over Mio in volume 2, on orders from Leohardt, not Zolgia, he's terrified and his internal monologue goes on to say she's Zolgia's right hand at that point on merit, not as eye candy. She's stronger than Varga, smarter, and more skilled than himself, and far more experienced in battle than any demon he knows.
- Ambiguously Brown: She's considerably darker-skinned than most other showcased characters.
- Androcles' Lion: In the light novel, during volume 5, she feeds and pets a "unicorn pup," The Demon World's equivalent of a stray cat. In return, that same unicorn pup rescues her from being stepped on by the attacking "heroic spirits," by licking her face after some debris renders her unconscious.
- Animal Eye Spy: Inverted. In the manga, Zolgia can see through her eyes and hear through her ears. It is also revealed that Zolgia can sense her thoughts and feelings at all times.
- Artificial Human: Artificial demon to be precise. Zolgia created her from the flesh of the Kaiju he made into his fortress as a "proof of concept" and was always disappointed at her "imperfection," ie, her ability to feel positive emotions, including empathy.
- The Atoner: She's deeply ashamed of her origins and having worked for Zolgia.
- Because You Were Nice to Me: While it is true that she gained enormous respect for the main characters as a result of Zolgia's mistreatment, and they still rescued her despite the way she treated them before, the act that convinces her to join Basara's team is a small, genuine act of kindness. Basara not only rescues her from some depraved soldiers in the "moderate" faction, but he carried her on his back when her shoe's heel broke and she twisted her ankle, then having her injury treated properly.
- Beneath the Mask: When she was introduced, she projected an air of being a cold, unfeeling fighting machine. In truth, she's a very kind and lonely woman. She only acted the way she did because Zolgia forced her to act that way through his authority as "Master." Basara's team saw through it. Once Zolgia was removed from the equation, she was free to show her true emotions, and boy oh boy do the protagonists find her adorable.
- Buxom Beauty Standard: She has a busty figure, emphasized by her Navel-Deep Neckline. Basara can't help but notice them when they bathe together.
- Can't Have Sex, Ever: By design. Zolgia specifically created her so that if she has sexual intercourse, consensual or otherwise, she loses her powers, permanently.
- Casting a Shadow: She specializes in darkness attribute magic.
- Combat Stilettos: She wears high heels as part of her battle outfit and they do occasionally serve as weapons.
- Dark and Troubled Past: Under Zolgia, her life has been as a stage-hand for one giant Snuff Film after another, without the option to refuse. The reason Zolgia deliberately made her unable to experience sexual intercourse, is that he used her as a medium to steal the Virgin Power of others, by raping them or handing them off to the rest of the Demon Council to be raped while under a succubus trait Master-Servant pact, and then stealing their powers away as the pact's curse triggered to its maximum under the shame and trauma of being unable to protect their chastity. Since she was the medium, Zest was Forced to Watch. So the fact that she not only enjoys but actively seeks out intimate encounters with Basara and the rest of the harem is truly astonishing.
- Dark Is Not Evil: After her Heel–Face Turn, she still wears her dark clothes and can be able to still use her dark powers.
- Defrosting Ice Queen: Starts off as a cold, ruthless servant of Zolgia. By the time she swears fealty to Basara, however, she's become a whole lot nicer.
- Dishing Out Dirt: Though to not as great an extent as her darkness magic, she can manipulate earth and stone.
- Fanservice Pack: Lampshaded. Her breasts have gotten noticeably larger from her first appearance to the time she comes to Basara for the purpose of joining his team. Basara noticed. Then again they were in the bath together, and she was buck naked.
- Fantastic Arousal: She gets turned on by having her horns rubbed.
- Flight: She can fly.
- Forced into Evil: Leading to Trapped in Villainy. After her creation, Zolgia slapped her into a pact with him, the conditions under which this occurred are not made clear. As such she was compelled to obey his will, until he both cast her off and got himself killed, at which point she became a free agent, until she goes and joins Basara's group, willingly.
- Green-Eyed Monster: When she saw Basara, Mio, Maria, and Yuki Bathtub Bonding in episode 9, and that the girls were having fun, she got envious of their good fortune, wishing she had that kind of fun with her master, but then resigns herself back to her duties.
- Heel–Face Turn: Sides with Basara after Zolgia discards her.
- Heroic Sacrifice: Subverted. In the anime, she provoked a lethal attack from Zolgia's fortress in order to buy Basara the opportunity to take out its core and stop its rampage. He pushes her out of harm's way as he's making his attack charge.
- Hope Spot: In Volume 3, after berating her, and then using an area attack to slam her to the wall, Zolgia apologizes, making her think she's being shown leniency until Zolgia turns and picks up Yuki promising to heal her wounds only because he hasn't finished using her up as a sex toy yet. Fortunately, Basara's rescue afterward was genuine.
- Horned Humanoid: She has rather prominent horns atop her head.
- I Just Want to Be Loved: During the epilogue of volume 3, Mio notes that this sentiment affects Zest so strongly, that Basara simply telling her that she's welcome in the Basara home if she finds herself in trouble causes Zest to melt like butter so much, that if there weren't witnesses around, she would have jumped and kissed Basara on the lips.
- Impractically Fancy Clothes: Combined with Navel-Deep Neckline. How she's able to move the way she does in an outfit eerily reminiscent of Vampirella without falling out all over the place is a mystery.
- I Owe You My Life: The very first time she declared herself Basara's property was in direct response to her life having been saved by Basara, an enemy.
- Irony: While in Zolgia's service, her standard attire was Stripperific, but she doesn't see any affection, in any sense of the term. When she joins up with Basara, her standard attire is very conservative, and she gets all the affection she can handle, and then some.
- Kindhearted Cat Lover: Her first instinct on encountering the unicorn pup is to pick it up, pet it, and feed it. This would serve her very, very well during Nebra's attack.
- Kung-Fu Wizard: She fights expertly with magic and martial arts.
- Marionette Master: If push comes to shove, she can summon a massive war-golem, and command it in battle.
- Marshmallow Hell: Once she enters into a pact with Basara, whenever she wants Basara to do erotic things with her, she shoves his face right into her cleavage, knowing full well how Basara admires her breasts.
- Meido: Once removed from Zolgia's service, she becomes a maid. First for Shella, and then for Basara. Yes, she's also quite good at it.
- Megaton Punch: When she doesn't use magic, she can deliver a punch capable of leaving a crater in concrete.
- Mistreatment-Induced Betrayal: Zolgia trying to kill her drives her to work for Mio and Basara's faction.
- Mode Lock: The light novel reveals there's justification for her Fanservice Pack. Under Zolgia's pact, she was not just stunted emotionally, she was forced into a single form, and kept there. Once free of Zolgia's tyranny, her body's growth made up for the lost time.
- My Master, Right or Wrong: What makes her an excellent servant is that she stands by her master, and obeys his wishes, regardless of her thoughts or feelings. While Zolgia didn't appreciate it, Basara does and treasures her thoughts and feelings more than his own. She greatly appreciates it.
- Navel-Deep Neckline: Her primary battle outfit has this, going down to just above her navel.
- No Good Deed Goes Unpunished: Because she stepped in to save Kurumi's life, she gets disqualified in the tournament.
- Pointed Ears: Her ears are predominantly pointy, even amongst demons. They also prove especially sensitive.
- Pretty Freeloader: Averted; she serves devotedly (perhaps too devotedly) as the housemaid in gratitude for Basara saving her life.
- Property of Love: Once she enters into the pact with Basara, and it becomes official, she happily proclaims that she is his possession, to do with as he sees fit. The fact that the rest of the harem squees in delight in hearing it? That's just icing on the cake.
- Punny Name: She's named "Zest" after a very popular brand of soap, especially in Japan. How does she wind up joining Basara's harem? In a soapland scene. note
- Redemption Demotion: In name only. In volume 2, Lars sees her as second in command to Zolgia. When she joins with Basara's team, she serves as the household maid. She doesn't mind the loss in rank in the slightest, as not only is she stronger as Basara's subordinate than she was as Zolgia's, but she gets far, far more affection, in every sense of the term.
- Rescue Romance: She starts having feelings for Basara after he saved her from Zolgia.
- Statuesque Stunner: Is the tallest of the girls at 174cm (5'8.5) and is absolutely beautiful.
- Tender Tears: When Mio, the person who rightly should hate her most, being the victim of Zolgia's actions, and having suffered some indignities at Zest's own hands casually, and honestly voices concern over Zest's well-being in the Demon Realm, Zest has to struggle to hold back her tears, due to the relief and joy that comes from being honestly forgiven.
- Tears of Joy: Once she is officially accepted as Basara's servant and fully acknowledges it in her heart, she weeps with joy. Both Basara and Shella, who formalized the pact, find it adorable.
- Took a Level in Kindness: Becomes a lot nicer in the second season, after she leaves Zolgia.
- Undying Loyalty: Declares her eternal loyalty to Basara in the second season. In the light novels, Shella magically measures the loyalty levels of everyone in a pact with Basara, and to Mio's surprise, Zest takes the lead.
- When She Smiles: Just about everyone on both sides of the fourth wall finds her genuine smile adorable.
- Winged Humanoid: She has Hawk-like wings around her waist, that allow her to fly.
- You Have Failed Me: Zolgia attempts to kill her for failing to keep Mio captive, but it doesn't work out and Basara rescues her.
- You Have Outlived Your Usefulness: Zolgia tries to kill her after he says she couldn't even guard Mio properly when Yuki and Mio defeat her. Fortunately for her, Basara cancels out Zolgia's attack on her before he's able to kill her.
Chisato Hasegawa
Chisato Hasegawa
Voiced by: Yuu Asakawa (Japanese), Wendee Lee (English)
The extremely beautiful school nurse, Hasegawa had kept a distant eye and a friendly ear for Basara. Her advice to him, even when he purposefully kept her in the dark about his dealing with demons and the heroes, was always spot-on. Later on, it becomes apparent that she has much more than a passing interest in the young Basara.
- Age-Gap Romance: Chisato is at least 10 years older than her cousin, Basara, making her old enough to technically be his aunt. It hasn't curbed her desire for him in the slightest, as she eventually begins dating him in secret.
- All Women Are Lustful: The fact that Basara's a student hasn't deterred her from sexually pursuing him. She wants him inside her and means to have him.
- Barehanded Blade Block: In volume 4, she blocks Brynhildr one handed, by catching, and crushing, the blade before it even reaches her palm.
- Barely-There Swimwear: She wears a very revealing sling bikini in Departures almost entirely just because she knew she could seduce Basara in it, much to Mio's jealousy. She certainly wasn't wearing it because she was accompanying young students to the pool, and even seductively strikes a pose in front Basara while wearing it just so she can emphasize her perfect figure that the sling bikini reveals.
- Buxom Beauty Standard: Not only are her breasts so large they could give Mio A-Cup Angst, but they're introduced when she asks Basara to help her out of her swimsuit, and they go bouncing out in a manner that has the narration describe them as being just shy of shouting "WE'RE FREE! WE'RE FREE! YIPEE!"
- Charm Person: How she keeps the peace around the school. It's also how she keeps most of the normal people from finding out about the non-humans that are there.
- Clingy Jealous Girl: While she's well aware that Basara is not ever going to be in a monogamous relationship with her, there are two lines she can't cross concerning his affection to other women. 1.) She can't bear it on school grounds because her role as a teacher forbids it. 2.) She can't stomach actually seeing it in front of her because it makes her so jealous that it causes physical pain.
- The Exile: She was cast out of Heaven for siding with her cousins. As a parting gift, she can unseal her full powers when protecting Basara, and only then.
- Extreme Libido: Even in her fallen state, Chisato still wields immense power and her libido is equally impressive. Completing her master/servant contract required her to create a space-time barrier, where Basara spent an entire "year" repeatedly having sex with Chisato to try to subjugate her. He eventually learned that her pleasure spot was her hymen and used it to finally bend her completely to his will.
- God Was My Co-Pilot: Her true name is Afureia, a fallen goddess who was cast out of Heaven for siding with her cousin, Raphine, and Basara's father, Jin. Which she keeps secret from Basara and the other girls in his harem for much of the series, though Basara gradually begins to realize that there's more to Chisato than she lets on. He eventually confronts her with his suspicions in volume 8, which is when she finally tells him the truth about herself and his parents.
- Good Is Not Soft: Kills a god for attempting to harm Basara. Doesn't bat an eye either when he starts pleading for his life and claiming he was doing it for her.
- Hair Antennae: She has two strands of hair that stick up from the top of the head like an antenna.
- Happiness in Slavery: Chisato's horny for Basara and secretly desires to exist for the sole purpose of being his property and his Sex Slave. Basara finally succeeds by spending an entire year repeatedly having sex with Chisato within a space-time barrier, until he finally screwed her into complete and utter submission.
- Hidden Depths: She initially seems sensible and reserved, as one might expect from a guidance counselor, but away from prying eyes, she's a tease which foreshadows her true intention...
- Hospital Hottie: Those ruby rimmed specs and that lab coat accentuate the look of an alluring older woman with bedroom eyes, wide hips, and a smokin' hot bod.
- Hot for Student: She's horny for Basara, though it was only through subtle teasing... at first.
- Hot God: A fallen goddess cast out of heaven.
- Improbably Cool Car: In the first OAV, she drives Basara to her apartment in a high performance sports-car, which looks like a Ferrari. How does a high-school teacher afford that? Especially in Japan, where cars are so expensive, most people commute via monorail, subway, or frankly don't bother and rent a room in a dorm, on campus. In particularly remote and rural areas, they take a bus maybe once a month, tops.
- Kick The Son Of A Bitch: She killed Sakazaki when the latter attempted to kill Basara.
- Kissing Cousins: Is revealed to be Basara's first cousin once removed from his surrogate mother's side, though the 10+ year age gap makes them pass as aunt and nephew. This does not stop the two from pursuing a relationship.
- Long-Lost Relative: She was Raphline's cousin, which makes her Basara's biological first cousin once removed.
- Ms. Fanservice:
- Particularly in the OVAs, two of which are dedicated specifically to her engaging in foreplay with Basara. She's also used in promotional art for the series, which usually shows her in various states of undress.
- She's also the one who caters to the most fetishes, as an older woman and a registered nurse who's involved in a sexual affair with a student. She's also subject to multiple close-ups to repeatedly emphasise that she has the largest breasts, widest hips, and hottest legs among Basara's harem. And in her second spotlight OVA, she allows him to suckle from her breasts as she lactates.
- Naughty Nurse Outfit: She wears a black laced garter-belt with nylons, a skintight miniskirt, and stiletto heels, as part of her standard attire.
- Of Corsets Sexy: A black silk bra and g-string, both trimmed in lace. She also has a see-through nightie.
- Power Limiter: Chisato is actually a high-class angel named Afleia. Most of her power was sealed when she transitioned to Earth. This seal can be lifted when her power is utilized for one sole purpose: protecting Basara.
- Property of Love: According to the light novels, Chisato's hidden desire is to be dominated by her cousin. She does eventually get her wish in the seventh volume, when he takes her virginity during a three-way and ravishes her to the point of submission. But he didn't succeed in fullly subjugating her until he completed their contract, which conditioned her body to respond to Basara's touch alone. Chisato gladly accepts her new role: to exist solely to be his plaything.
- School Nurse: The school's on-call nurse and one of its most beautiful people.
- Secret Relationship: If word ever got out that she was sexually involved with a student, it would likely cost her her job and tarnish her reputation. Made more illicit since Basara is also her first cousin once removed, so she has to keep it a secret from the rest of the faculty and the other girls living with him.
- Sexual Extortion: In the early parts of volume 4, after she's taken Basara into her home, unchaperonednote , her advances become progressively more aggressive.
- She initially coerces him by dropping hints about his illicit relations with Mio and Yuki, whenever he tries to pull away. While she doesn't make any threats, Basara realizes he has little choice but to comply, due to the likely consequences of outright refusing her.
- The extortion aspect is downplayed by volume 6, by which time, Basara has grown mutually attracted to his cousin. Though she still explains that advancing their relationship is necessary in order to better his chances of surviving the inevitable confrontation with the Demon forces after him.
- Shameless Fanservice Girl: While the most forward of Basara's harem, she's sensible enough to reserve her advances until they're alone. Two of the OVAs show she's comfortable being nude around him and she's usually the one to initiate foreplay. The end of the series goes further to show how strong her libido is, by having her lose her virginity via double penetration and being able to repeatedly have sex for an entire year before exhaustion.
- Supreme Chef: In the early parts of Volume 4, and the OAV, she treats Basara to a home-cooked meal featuring numerous dishes both local and foreign. Basara finds them all so delicious, he can't stop eating even when he's more than full.
- The Tease: One of her favorite games is using her body to see just how far she can tempt Basara, before he either blushes, or gives in. But as their relationship deepens, her teasing becomes progressively bolder, until he finally goes all the way with her.
- Their First Time: She gives hers to Basara towards the end of volume 7.
- Three-Way Sex: When she and Basara finally has sex with her, he uses his power to create a copy of himself mid-coitus, leading to this. An additional note mentions that, in addition to this being her first time period, it was also Chisato's first experience with double penetration.
- Tranquil Fury: Harming Basara in front of her will have her kill the culprit without mercy. A manner in which she might as well be discussing the weather.
- Violently Protective Girlfriend: If you value your life, don't ever try to harm her cousin/'master'. A decision that Ornis didn't live to regret, when he tried to kill Basara.
- Willfully Weak: She chose to have most of her power locked away so she can watch over Basara on Earth. She's still more than strong enough to crush Brynhildr's blade with her bare hands.
- Women Prefer Strong Men: To complete her master/servant contract, Basara had to fulfill her hidden desire, which was to be dominated by her cousin. He finally takes her virginity in volume 7, in which, he creates a doppelgänger of himself in mid-coitus and ravishes her. But he doesn't actually subjugate her until the final volume.
Celis Reinhartd
Celis Reinhartd
Affilates
Nanao Tachibana
Nanao Tachibana
Voiced by: Asami Tano (Japanese), Laura Stahl (English)
A student who serves on the school's newspaper club.
- Adaptational Wimp: In the original light novel, Nanao wipes the floor with Basara, and Basara exposes his neck in a Kill Me Now, or Forever Stay Your Hand way to prove his innocence. Burst, on the other hand, has Nanao slightly weaker than Basara when the two initially blamed each other for the sabotage of the sports festival orchestrated by Sakazaki, and Basara was able to curb-stomp Nanao. In either case, Nanao was clearly no match for Ornis.
- Aura Vision: Nanao can track the flow of magic and spirits.
- Berserker Tears: Nanao is clearly crying in fear and rage while attacking Basara.
- Bifauxnen: Nanao reveals herself as a woman in volume 9.
- Dude Looks Like a Lady: Or so it seems...
- Entertainingly Wrong: She attacks Basara because he thinks Basara is just another "hero" like those who drove his race off their lands and to the brink of extinction, after deliberately provoking incidents and then justifying themselves by saying the Vampires are a dangerous race.
- Friendly Neighborhood Vampire: She is actually a vampire.
- Gender Reveal: Nanao is revealed to be a woman in volume 9. Though she is able to switch between genders.
- Hidden Depths: Descended not from one powerful vampire bloodline, but two.
- I Just Want to Have Friends: Nanao values Basara's company because Basara's overtures of friendship are genuine without ulterior motives.
- Informed Attribute: Nanao is introduced supposedly having a weak constitution. Nothing has been shown to validate this statement.
- Mind Control: Well, at least hypnotic eyes. Nanao subdues Donoue's gang and makes them extremely susceptible to Chisato's commands in Volume 4 with a glare.
- Mode Lock: Due to Basara kissing her during the Christmas party, she is stuck in her female form. She remains stuck in her female forms permanently after Chisato engraves the feeling of being a woman onto her.
- Our Vampires Are Different: Nanao can and does easily pass for a normal human. At no point are sunlight, running water, or failure to eat human food an issue. In fact, she is never seen drinking blood or needing a blood transfusion.
- Put on a Bus: Shows up early on in volume 4. She then disappears from the story for quite sometime after Mio and the others enter the demon realm.
- Red Eyes, Take Warning: She has red eyes, and as a vampire, she can be a dangerous opponent when provoked.
- School Newspaper Newshound: Nanao's introduced as part of the school newspaper club, if not running it.
- Shrinking Violet: Under normal circumstances, Nanao is painfully shy.
- Sweet on Polly Oliver: In the light novel, Basara found himself strangely attracted to Nanao...
- Sweet Polly Oliver: She's actually a girl posing as a boy.
- Unskilled, but Strong: Basara notes in volume 4 that Nanao could easily overpower him, but hiding as a normal human, doesn't have the knowledge or skill to use the vastly superior vampire powers and abilities effectively.
- Wolverine Claws: She can extend his fingernails until they're several feet long and sharp enough to rival a sword.
Sapphire
Sapphire
Raphaeline
