Fanfic: A Demon Among Devils

A Demon Among Devils by Crimson Lord is a crossover of the High School DXD universe with the Persona3 universe.

Minato Arisato wakes to find that Elizabeth has freed him from the Great Seal and dropped him off in this new world, where devils, fallen, and angels dwell. Accepting his circumstances, he settles into his ordinary life within it until Issei comes to him and asks what he would do if a friend were in danger. From there he finds himself standing before the fallen, Raynare, who passes her judgement on him. Refusing to be judged, he summons the power of the Personas he carries within the Sea of Souls, thus beginning the story.

The ramifications of his Personas—among which are Celestial Paragons and Archangels and Demon Lords and Archdevils—ripple out further and further as the story develops, and Minato finds himself increasingly involved with the cosmic struggles between the factions...

Tropes found in this fanfiction:

  • Accidental Kiss: Minato deliberately invokes this between Issei and Asia when he “accidentally” trips Issei while the two were trying to admit they like each other. He later does the same thing between Koneko and Issei after Koneko asks him to.
  • All Your Base Are Belong to Us: In chapter 16, the peace conference between the Three Factions is attacked by the Khaos Brigade with an army of brainwashed Sacred Gear Users, magicians, Fallen Angels and Nidhogg. In addition, Old Satan loyalists are revealed to have been hiding among the Underworld faction and have also attacked, preventing the devils from evacuating their civilians.
  • Ancient Artifact: A few kinds in the story.
    • Sacred Gears, powerful items with incredible power crafted by the Biblical God and bestowed upon humanity. It is primarily due to these that humans are sought out by various supernatural creatures in the world. Among them, 13 unique Sacred Gears are in a class on their own and are called the 13 Longinus.
    • Both the Grigori and the Khaos Brigade have so far experimented with creating Artificial Sacred Gears, though they are generally not as strong as originals.
    • Other than Sacred Gears, various weapons from ancient mythology, distinct from Sacred Gears, are also shown to exist with great powers in their own right.
  • Asskicking Equals Authority: According to Fafnir, one of the reasons for Ddraig being considered to be among the mightiest of dragons is due to him defeating every other famous dragon in history in battle at some point in his life.
  • Attack! Attack... Retreat! Retreat!: When Issei charges up his Wave Motion Gun style attack and prepares to fire it a Kokabiel, Koneko declares that they have won. After Issei (somehow) misses his target, Koneko declares that they have lost.
  • Badass: Minato gets this in spades, but that's not to say everyone else doesn't get their chance at the spotlight.
  • Badass Boast: Almost every time a Persona is summoned, you can expect this. Kokabiel got in one too.
  • Big Damn Heroes: A lot.
    • Takes the cake in chapter 13. First, the Knights Templar arrive chanting a revised version of their creed to help the devils. Then came the three Fallen Angels that were with Raynare. Then Minato himself arrive. And at the end? The seven strongest Archangels - Metatron, Sandalphon, Raphael, Michael, Gabriel, Uriel and Melchizedek - appear on the battlefield themselves.
    • At the end of chapter 17, when all hope seems lost, Issei somehow manages to bring forth Minato's Persona Nidhogg to challenge the DxD version.
  • Bodyguarding a Badass: The Knight Templars and Hospitallers decide to act as Minato's personal bodyguard and custodians.
  • Bolivian Army Ending: In chapter 16, when the gathering between the Three Factions are shown the battle against Erebus, the last thing shown is Metatron and Belial standing back to back as they face down Erebus and an army of Shadows.
  • Brain Bleach: Issei, once he found out about an official Yaoi book featuring him and Minato.
  • Breather Episode: Minato and the others get some well-deserved time off in the Underworld after the climactic battle at the peace conference.
  • Broken Pedestal:
    • Jeanne from the Hero Faction when she faces off against the Persona version of Joan of Arc.
    • Most of the Exorcists, including the Knights Templar and the Knights Hospitaller, employed by the Church develop this towards the higher ups within the Church once it's revealed that they've been concealing the fact that God is dead.
  • Celestial Paragons and Archangels: Minato summons all the Archangels to deal with the Fallen.
  • Chekhov's Gun: In chapter 4, DxD’s Metatron's spear, Inaerion, was briefly mentioned to have been hurled back into heaven upon his death and left in the Antechamber of Thrones because no one could move it during a larger explanation of the Great War. In chapter 15, when Raynare returns as the Archangel of Vengeance, Inaerion is summoned from heaven by the Persona version of Metatron and bestowed upon her.
  • Chronic Hero Syndrome: Minato has a tendency to help not only those he avoids, but also his former enemies. He allows the Fallen Angels to live due to their chance at redemption for their lives, he offers to help Rias avoid the Arranged Marriage despite how he initially had no reason to help, and he heals Riser's peerage after they were all gunning for him during the Rating Game.
  • Civil War: Directly after the Great War a resistance comprised of Devils who wanted the Great War to stop formed and fought against the Old Satan Faction of Devils who wanted to fight until both the Angel and Fallen Angel Factions were dead even if it meant extinction for their own race. The resistance won and form the present Devil society in the Underworld.
  • Conservation of Ninjutsu: Averted for the most part.
    • During Riser's Rating Game against Rias, it's noted that many of his pieces are actually inferior in quality when compared to Rias's and he only manages to gain the advantage thanks to leveraging his superior numbers to separate and take down each of her pieces individually.
    • Outright inverted with the Knights Templar, whose holy blessings are explicitly more effective the more of them there are.
  • Covert Pervert: Asia, who sneaks off to buy a copy of an expy of Fifty Shades of Grey featuring Issei and Minato.
  • Crisis of Faith: Many of the exorcists employed by the Church, including the Knights Templar, Hammerhands, Knights Hospitaller, go through this upon learning that God is dead and that the higher ups within the church had been concealing the fact from them. While they still maintain their faith in their religion, they no longer trust the Church to adequately lead them.
  • Curb-Stomp Battle: So far, everyone who has directly battled a Persona is on the receiving end of one. Understandable, considering many of them are just ordinary entities fighting their equivalent of living legends.
    • Minato gives one to Issei during their match after equipping Nidhogg to himself.
    • Kokabiel delivers one to Kiba, Irina, Tsubaki and Xenovia so badly that he almost kills them even though he was clearly just playing around. Asia is the only reason they manage to survive to regroup and they opt to temporarily retreat rather than fight him again.
    • The Archangels and Thanatos quickly turn the tide against the two-hundred or so Fallen Angels.
  • Darker and Edgier: From the beginning it goes straight into this territory. There's still comedy, but the enemies are much more serious threats and the battles far bloodier.
    • More than that even. While the story still has ample amounts of comedy in it, comedy no longer influences the plot as much as it did in canon. Case in point, Issei has yet to gain a single power-up or win a single battle by way of Pervert Power.
  • Darkest Hour: Nidhogg's counterattack in chapter 17.
  • Dare to Be Badass: Nidhogg encourages Issei this way, challenging him to work until the day he is worthy of inheriting Ddraig's power.
  • Demon Lords And Arch Devils: The leaders of the devils, most of whom assemble after the Rating Game where Minato summons Belial.
  • Demoted to Extra: Issei is still a prominent side character and is still picking up his share of the female cast but the story is told almost entirely from Minato's point of view, and Rias winds up fixating on him rather than Issei.
  • Despair Event Horizon: According to Raynare, all Angels that become Fallen experience something similar to this during the process. Usually, the Fallen will eventually come to terms with it to some extent and some, typically those that choose to fall willingly, even come to revel in their Fallen status.
  • Elemental Rock-Paper-Scissors
  • Eldritch Abomination: Erebus and Trihexa both fit this bill, being unfathomably powerful creatures that would cause The End of the World as We Know It if they are ever unleashed as well as being virtually impossible to kill, such that the most that could be done against them was seal them away. This isn't a coincidence, as they are implied to be similar in nature to each other.
  • End of an Age: It’s been discussed that for all intents and purposes, the days when the Supernatural Factions of the world were the supreme powers that ruled are over and that it has now become the age for humans to govern the world. Defying this was DxD Nidhogg's motivation for attacking the peace conference.
  • Enemy Mine:
    • Although they personally aren't enemies, when Xenovia and Irina are sent to retrieve the Excaliburs they enlist the help of several devils and Minato, due to knowing that they couldn't do it on their own.
    • Though reluctant, Rias and Sona's group ally themselves with the Knights Templar and later a few Fallen Angels in repelling Kokabiel's forces.
    • This is later invoked by Metatron, Belial and Helel as part of their reason for why the Three Factions should cooperate and ally with each other; the mere existence of beings such as Trihexa and Erebus would need everyone working together to even hope to stand a chance should they ever awaken.
  • Epic Fail: Issei gets his thunder-cannon to boost up to the max for the first time and aims it towards Kokabiel, with everyone thinking it could mean victory for them... He misses, without the Fallen Angel even bothering to move.
    • Fafnir mentions that for a dragon to miss with their ultimate attack is an embarrassment of the highest order. Later on we discover that other people in the Underworld are commenting that he can't hit anything.
  • Expy: All sides of the DxDverse practically correlate to the SMTverse on the series' alignment, with the Angels of the Lawful (usually Lawful Good), the Fallen on either Neutral side, and the Devils/Demons on... well, almost anywhere except Lawful Good, with the Hero Faction going for True Neutral for only humanity's sake. Then it gets funny when Minato summons the Personas to represent each side during the meeting, those being Metatron of the Angels, Belial of the Devils, and Helel of the Fallen Angels.
  • Famed In-Story: Champions and leaders from each faction have been introduced that are noted to have distinguished themselves during the Great War and are already well known among the Three Factions. Then there are those mythological figures that have existed well before the Great War and who’s presence almost certainly means that they have fought and won against some the greatest each faction had to offer who’s mere existences are revered and feared by allies and enemies respectively. Minato’s Personas are also this and mostly fall into the latter category.
  • Fear Is the Appropriate Response: Thanatos prompts this from everyone. All the Fallen Angels are willing to fight the Archangels as brothers-in-arms, knowing that death would be the end. But Thanatos they run from futilely, throwing each other towards him to try and escape.
  • Fire-Forged Friends: Part of the reason it turns out Metatron and Belial seem to get along so well was partly due to the two of them being among the last remaining when battling against Erebus and the Shadows, complete with a Back-to-Back Badasses moment.
  • Follow the Leader: Well-known for the style of a Persona's Invocation when it is summoned, to the point that other authors have tried re-imagining it in their own works.
  • Harmless Freezing: Zeruel when he gets hit by Nidhogg’s ice breath at point-blank range, it is explicitly mentioned that he was frozen down to his organs and blood but it’s implied that his survival was due to his power as an Archangel. Rias later goes through this as well, although she was “merely” encased in ice rather than frozen solid.
  • Heel-Face Turn:
    • Dohnaseek, Kalawarna and Mittelt are each given a mark of penance by Metatron which would allow them to redeem their status as Angel. They eventually help out and betray Kokabiel when he assaults Kuoh Academy.
    • The Knights Templar aid the devils in their defence of Kuoh Academy after Uriel defeated them in the cathedral. Since they're religious zealots, it makes sense.
    • Raynare herself eventually does this after Minato brings her back to life.
  • Heroic Second Wind: Once the Persona Nidhogg appears and uses Samarecarm to revive the fallen so that Asia can heal them, Nidhogg goes down.
  • Hit-and-Run Tactics: Kiba, Xenovia and Irina use this strategy against Nidhogg, passing Ascalon to each other to keep Nidhogg off balance.
  • Hope Spot: Working in tandem Rias' peerage and some of the Knights manages to kill Nidhogg. But wait! Turns out it has gained a Healing Factor that makes it too tough to kill and it uses the opening to take them down afterwards.
  • Hypocrite: Cao Cao has to be one of the most disgusting examples ever seen. He claims to fight for humanity against forces that would use them for their own ends, while sending an army of mind controlled Sacred Gear users - including the elderly and children - against a peace summit. The worst part is that he refuses to even acknowledge the hypocrisy of his actions even when Minato points it out to him.
    • He acknowledges it in the next chapter, absolutely livid at the fact that his enemy was right. At the same time he gets called out by those he allied with on account of aligning with them when they weren't human either.
  • Impaled with Extreme Prejudice: Minato gets Cao Cao's spear rammed straight through him. Doesn't kill him though.
  • Knight Templar: Literal Knights Templar, trained exorcists who act in a unit to overpower even high-level devils.
  • Metaphorically True: So far Minato has deliberately left out information about him being from another world when talking about his past. When Kiba surmises that SEES is overseas when it’s mentioned that they are very far away, Minato says it’s “something like that.” He comes clean in Chapter 16.
  • Mêlée à Trois: This is basically what the Great War boiled down to, with the Devil Faction, the Fallen Angel Faction and the Angel Faction each battling against each other and trying to wipe out the other two. Ultimately, it was the very real danger of Mutually Assured Destruction occurring that finally caused the Great War to stop, leading to all three factions to agree to an unofficial truce and entering a Cold War like period where each faction focused on replenishing their strength.
  • Mirror Match: The end of chapter 17. Persona Nidhogg vs DxD Nidhogg!
  • Mythology Gag: In chapter 20, the boy’s attempts to peek on the girls in the bath and Minato catching them is a big one back to the Hot Springs Episode from Persona3, up to and including Minato deciding to execute them à la Mitsuru style.
  • Not Always Evil: Minato was originally thrown off when he finds that Rias, Sona and their Peerages are all completely normal, nice and friendly people due to his experiences with his Demon Persona. As it turns out the original 72 Pillars were Always Chaotic Evil and obscenely powerful, ruling over the underworld with an iron fist. However when all the originals were killed off during the Great War their descendants were given free reign to rule themselves and many decided that they no longer wanted to be the kinds of devils that lived for hatred, evil and destruction and rebelled.
  • Not So Different: Minato holds this opinion of humans and the other supernatural races of the Dx D world. When the Hero Faction try to convince him to join their cause, pointing out that each race has their share of good people, evil people and everything in-between and that no race should be judged based only on their good or bad points.
  • Offscreen Moment of Awesome:
    • Happens regularly. Typically whenever Minato summons the Persona of an extremely powerful and famous mythological figure, once they’ve finished their entrance and are ready to open a can of ass kicking on their unfortunate enemies, the next scene cuts to the direct aftermath or even to events well after the battle. In some cases there are anachronistic scenes that go into what happened directly after the Persona is summoned but they typically end before the actual battle begins.
    • In chapter 17 Raynare manages to fight Vali to a draw offscreen.
  • Oh, Crap: Anytime anyone sees a Persona summoned against them for the first time, partly because that Minato tends to use ones that are significant to his current opponent in some way.
  • The Power of Friendship: The Social Links that Minato made in his own world with SEES is what allowed him to gain so much power with his Personas. It’s also implied that the Social Links that Minato can form are also having an effect on those that he is becoming close to, though it has the inverse effect of powering up Minato’s friends rather then himself. This is how Issei gains his Arm Cannon and Dragon Summoning, Kiba gains Nihil Swords, and so on.
  • Priceless Paperweight: Minato uses the Evil Pieces given to him… as ordinary chess pieces on a board. Subverted with the Excalibur pieces that Michael gives him—he thinks Minato plans on doing this, but instead Minato gives Xenovia and Irina one each and Kiba the remaining two.
  • The Quiet One: Minato.
  • Recognition Failure: The bookshop keeper in the Underworld fails to recognize Minato, despite mentioning he looked just like him and there's a billboard with him on it not too far away. It was the same for the little girl, Illyria. Apparently he's so famous no one could imagine him walking into their store.
  • Red Baron: Minato is referred to by angels and fallen as the "Nephilim, the Exalted Among All Factions."
  • Renegade Splinter Faction: The Knight Templars who sided with Freed. Later on they side with Minato, eventually serving under him.
  • Running Gag:
    • No matter where Minato goes or where he tries to hide, Issei will always know exactly where to find him at any time during the day.
    • Sometimes Minato returns to his home ready to relax after a long day only to find someone already inside who wants to talk to him about something important. Becomes less funny at the end of chapter 14 when said people are the potentially hostile Hero Faction.
  • Shoot the Medic First: During the Rating Game, Asia went down first. Nidhogg made damn sure Asia went down during the second round before she could revive anyone else.
  • Shout-Out:
  • Slave Mooks: The sacred gear-users in Chapter 16. Men, women, children, as long as they could be used they kept fighting until they were taken to pieces.
  • Spared by the Adaptation: Raynare as well as the fallen who were with her in the first chapter don't snuff it in the beginning. This is because Metatron wants to restore the heavens and all of them were capable of being redeemed... well, not Raynare initially, but Death Equals Redemption.
  • Stating the Simple Solution:
    • During the planning process Rias and her Peerage go through in determining how they should use Minato’s strength in the Rating Game against Riser, Kiba points out Minato could simply summon Nidhogg and have him blast Riser and his peerage to kingdom come straight off the bat. This is shot down due to the fact that a) normally Minato can only comfortably summon a single Persona and was currently using Belial to fool Rias’s Evil Piece and b) Minato is still doing his best to remain under the radar of the Three Factions which wouldn’t happen if he summons an infamous Evil Dragon in broad daylight.
    • When Issei asks Minato for advice with girls, Minato bluntly tells Issei to just tell Asia that he likes her. Issei seems to consider it a novel concept and is even somewhat bemused that it doesn’t involve some sort of trial by combat.
  • Sophisticated as Hell: The Paladin who strikes one of the final blows against Nidhogg gives us this line:
    ‘’Though verily I walk through the valley of the shadow of death, I fear no evil, for I wield a hammer full of fuck you.’’
  • The Stoic: Minato. The only time he actually gets truly angered and threatens to break this state is when Raynare is killed. It takes him some effort to buckle it down.
  • Tempting Fate:
    • Kokabiel mocks Rias and the others when they claim Minato will stop them and asks where is he now then. Minato raises his hand, revealing he's already there.
    • Zeruel demands a challenge when the Khaos Brigade attack the summit. He gets the actual Nidhogg.
    • After bringing down Nidhogg, Kiba remarks that the ending was almost anticlimactic. It turns out Nidhogg is nowhere near finished.
  • Took a Level in Badass: To start with: Issei gains a thunder-cannon and the ability to summon Dragon Persona from Minato, Kiba gains the ability to create Nihil Weapons, and Raynare gains Metatron's legendary spear after being reborn as an Archangel.
  • Trapped in Another World: Minato in a sense. Though he does still live in Japan, there are enough differences between his world and the Highschool DxD one that he quickly realises that he’s not actually in his home world but in some sort of alternate reality.
  • True Companions: Minato and SEES were this. Most peerages seen so far also fall into this, with Rias, Sona and Riser’s peerage’s all demonstrating loyalty towards each other.
  • Villainous Rescue: Twice in chapter 13. First when the Knights Templar arrive to help rout the Fallen Angels attacking Kuoh academy and later when Dohnaseek, Kalawarna Mittelt arrive and manage to distract Kokabiel long enough for Rias and Sona to escape him.
  • Villainous Valor: Several antagonists have displayed this.
    • When Belial wipes out the rest of his Peerage, rather than try and escape again Riser attempts to fight back against Belial with a massive blast of fire. He accomplishes nothing but standing firm and trying to take on one of the original Archdemons definitely takes balls.
    • The remains of Kokabiel’s Fallen Angel army are all veterans who immediately began working together flawlessly against the seven Archangels Minato summons even while knowing full well they stood no chance.
  • War Is Hell: Chapter 16 illustrates this very much.
  • Well-Intentioned Extremist: What Cao Cao sees himself as.
  • Wham Episode: Chapter 16: The peace conference is attacked by the Khaos Brigade using legions of Brainwashed and Crazy Sacred Gear users, the Old Satan Faction uses the chance to attack the current Lucifer, there are still some fallen angels turning traitor, and Nidhogg, the real one, comes down to pick a fight with Zeruel.
  • Wham Line: "That may be so, but Heaven never started this war. We never struck the first blow. The Great War was started when the devils and the Fallen killed the Son of God. It was started when your kind murdered the Messiah."
    • "Hello, Brother."
  • The Worf Effect
    • Once Kokabiel appears, he spends the entire time demolishing anyone he comes across. Once Raynare is brought back as the Archangel of vengeance she effortlessly crushes him in turn.
    • In chapter 17, Zeruel is easily defeated by Nidhogg, right after he asked for a worthy opponent even.
  • Worthy Opponent
    • Belial and Metatron consider each other this.
    • A lot of dragons consider Ddraig to be this.
  • You Shall Not Pass: Villainous variation done by Vali who tries to bar the Occult Research Club and the Knights Templar from stopping Nidhogg, and reversed on him when Raynare appears to hold him off.
  • Zerg Rush: How the Khaos Brigade uses their brainwashed Sacred Gear users. Everyone else is more skilled or powerful, but they are simply swamped.