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Fanfic / RWBY: Fate Disaster

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RWBY: Fate Disaster by D.N.Works is an ongoing crossover between Fate/Grand Order and RWBY.

In Chaldea, when the Servant Jason gets tired of being used as front line bait, he foolishly creates a plan to escape. One that instead of sending him to the desired destination to die, unknowingly sends him, his allies the former Argonauts: Hercules, Atalanta, Medea (Lily), and fifteen other Servants to the world of Remnant instead. All while causing them to be weakened, no form of communication with Chaldea and its Masters, and a limited supply of mana.


Now trapped in this world without realizing it's a new dimension all together, Jason and his team must figure out how to survive in their current state. All while trying to avoid the problems of the world, find the other Servants, possibly rule the place, and Jason avoiding a beat down.

All while doing their best to avoid turning their situation from worse to a plain disaster in their stay here.

There is a side-story called RWBY: Fate Disaster Anthology, which shows adventures from other Servants.


This fanfiction contains these tropes:

  • Abhorrent Admirer: Medea (Lily) is in love with Jason, but he can't stand her.
  • Adults Are Useless: Atalanta states this as while children are here to stop them at the docks, the adults aren't. Considering them pathetic.
  • And I Must Scream: Chaldea!Jason, as punishment for damaging Chaldea's equipment, is forced inside a Capsule and transported somewhere to gather resources to make up for the equipment funds. To Chaldea it is for a few days, but will be weeks for him. His Chaldea!teammates also travel with him, though its doubtful they'll be too helpful.
  • Because You Were Nice to Me: While it's still uncertain why exactly, apparently Abigail Williams sticks with Roman Torchwick because he doesn't hit her and is kinda nice to her.
  • Big "NO!": Jason has this when he learns that the other Servants managed to break Hercules out without his help.
  • Butt-Monkey:
    • Jason is on the receiving end of this a lot, and rather deserving to considering his actions got everyone here. The Servants all wishing to beat him down one way or another.
    • Hercules but downplayed. Usually involving him breaking things due to his monstrous strength.
    • Sigurd slowly ends up being this too. Mostly with being seen as a cheater, incompotent, and a disgusting playboy by the female Atlas soldiers.
    • Downplayed, but Roman is forced to take care of Abigail, Medea (Lily) at times, and later on, Child Hassan. Soon both Jack and Nursery Rhyme join him and he states life is laughing at him.
  • Came Back Strong: Ozpin is on the receiving end of this trope. After nearly being killed by Medea (Lily's) Mana Overload move, he nearly dies but gets back all his powers and a little extra back when he was Ozma. Effectively taking a Took a Level in Badass trope to. He even states he's stronger than any of the Maidens now.
  • Cover Innocent Eyes and Ears: Yang covers Ruby’s eyes when Jason suffers a nasty broken arm.
  • Curb-Stomp Battle:
    • Partly because they were weakened, partly because of her tremendous power and skill, Glynda Goodwitch easily defeats and arrests the Argonauts.
    • Jaune Arc tries to attack Jason. Jason may be an amateur swordsman, but he's still a Servant and more skilled than the completely untrained Jaune, and Jaune gets his ass kicked.
    • Angra Mainyu of all people does this to the now powerful Wizard Ozpin, a seasoned Huntsman Qrow, and Ana.
  • Demoted to Extra: All of the RWBY characters have this, particularly the main characters themselves. Ruby and her friends having less screen time compared to others.
  • Didn't See That Coming: Ozpin was actually surprised that Jason chooses not to work for Beacon and subsequently to go to jail, expressing disappointment that he couldn't get the Argonauts to fight for him.
  • Did You Just Punch Out Cthulhu?: Roman Torchwick almost manages to drown Hercules. If Sigurd did not save him, he would have died. Later, Roman kills Hercules with the Gram dagger he stole from Sigurd. Fortunately, Hercules eventually revives due to God Hand.
  • Driven to Suicide: Jason's scheme that started the story was to rayshift into an unknown Singularity away from the Master, kill himself, and then return to the Throne of Heroes. Of course, it goes wrong when his allies the former Argonauts come with him, and it ends up stranding them all in Remnant.
  • Enemy Mine: During the Fall of Beacon, a few White Fang members realize they have work together with the Huntsmen and Atlas soldiers to survive.
  • Energy Absorption: The Servants learn that simply by touching Dust, they can absorb its power to replenish their mana. Angra meanwhile uses the negativity of Remnant to become stronger.
  • Entertainingly Wrong:
    • Jason, Atalanta, Medea (Lily), The Hassans, and almost every other Servant so far seem to believe themselves to be in another Singularity or at most another timeline. Justified as according to Jason, Rayshifting only allows a form of time travel, not dimension travel. Though a few like Ishtar and Angra know they aren't in another timeline, but a genuine dimension.
    • After seeing Medea (Lily)'s magic, Ozpin and Glynda believe she is one of the Maidens of the Seasons. Later, after seeing her use complex spells instead the usual brute force applications of magic and Jason use his Noble Phantasm, Ozpin assumes their group may be working for Salem because Salem is the only other person on Remnant who knows about magic. Later realizes they aren't. Knowing Salem isn't desperate enough for help from people like Jason.
    • When Xuanzang Sanzang explains that the Servants are from Chaldea and ended up here, Ozpin believes Chaldea is an underground organization that has been raising superpowered people who have recently escaped. This to him explains why the Servants are so ignorant about the world and why Jason's group turned to crime.
  • Epic Fail: Jason and Hercules, in order to start taking over Vale attempt to gather resources, Lien. So the two attempt to rob a bank... only to attack a grocery store instead.
  • Evil Is Petty: Ozpin isn't evil, but he himself admits that what he's doing to hurt Jason is petty. Then again, Medea (Lily) did almost kill him.
  • Even Evil Has Standards: Roman Torchwick may be a criminal and thief, but even he won't get a little girl drunk.
  • Evil Versus Oblivion: Jason states that one of the reasons the 'Evil Aligned' Servants aided Chaldea was because they still wished for a world to be summoned in. And the 'Incineration' was definitely a good reason. But now that they're on Remnant, well...
  • Exactly What I Aimed At: Jaune Arc throws his sword at the Argonauts. They laugh and sidestep it, but Jason realizes he was aiming at the Dust they stole. It blows up.
  • Handicapped Badass: Applies to all the Servants who first entered Remnant. Who are now no longer are as powerful as they were before. Yet even then with a few exceptions, they are still capable of kicking ass and are above most Huntsmen.
  • Face–Heel Turn: Downplayed. No Name Assassin, Cú Chulainn (Alter), and Aŋra Mainiiu all choose to fight for Salem. Though its really by convenience, as each join not for Salem's sake, but for their own. Later on, her ranks improve with Giles, Emiya Alter, and Hyde.
  • Failed a Spot Check: Atalanta and Medea (Lily) did not notice that the Moon in Remnant was shattered until Jason pointed it out.
  • From Bad to Worse: The Fall of Beacon can be seen as this as Chapter 47 shows more than just Grimm attacking, but both Cinder's new allies and Chaldea's past enemies.
  • Foreshadowing:
    • In chapter 24, it is hinted that more Servants will be coming to Remnant. By Chapter 27, Gilgamesh is the first to show up.
    • The many Grimm seen in chapter 37 also hints to trouble in the future.
    • Haagenti states something else occurs when a Servant runs out of mana, and won't just disappear.
  • For Want of a Nail: Because of the presence of the Servants, as the author states, canon has gone off rails.
    • The massive merged King Taijutu Grimm from the manga dies in the story. Here, it lives to see another day.
    • Roman and Adam decide to ditch Cinder after realizing that her plans will either kill them or ruin them.
    • Vacuo as a whole believe the Brother Gods have returned in the form of Ishtar and Ereshkigal, and its all but stated that soon Remnant will know later on.
    • Amber was in a coma the entire show and dying, here, she's still out of it but because of Ozpin, no longer at deaths door.
    • Team RWBY and JNPR don't have as much a role in stopping crime because of Jason and his actions.
    • Because of the deal between Gaia and Remnant, the Fall of Beacon is even worse as it involves past enemies of Chaldea.
  • The Friend Nobody Likes: Jason is hated by pretty much everyone in Chaldea because he is a jerk, wimp, and coward. The only people who tolerate him are Medea (Lily) because she is in love with him and Hercules who is his Only Friend, and even their patience has limits.
  • Gave Up Too Soon: The Argonauts decide they have no choice but to sell their weapons for food. Shortly after they do this, they find a nearby crashed airship with plenty of provisions.
  • Gone Horribly Right:
    • Medea (Lily) infuses a lot of her mana into Ozpin to kill him. She got the infusion right, to bad it only made him stronger.
    • Happens with Cursed Arm's intent of summoning more Servants.
  • God Guise: Ishtar already had the people of Vacuo worshiping her, but when the people see both her and Ereshkigal in action, they mistake them for the Gods of Light and Darkness and believe everybody was mistaken about the Gods being the Brothers. They start worshiping them as the Sisters.
  • Gods Need Prayer Badly: Ishtar notes one reason why the Servants are so weak in Remnant is because no one has heard of them, so no one knows or believes in them. Ishtar becomes a hero to the kingdom of Vacuo by protecting them from the Grimm. So many people constantly cheering for her quickly replenishes her strength. However, after Ishtar and Ereshkigal get mistaken for and worshiped as the Gods of Light and Darkness, they only receive half of the energy because the other half goes to the actual Gods of Light and Darkness.
  • It Can Think:
    • After not being seen since the early chapters, the Alpha Beowolf Grimm that faced Atalanta from before returns. It shows itself to be much different from other Grimm by guiding the massive fused Grimm away to safety. Having a group of numerous Grimm with it showing its intelligence.
    • Ironwood's new 'limb' from Cursed Arm shows unnatural intelligence.
  • I've Come Too Far: Roman admits to wondering where the days of regular stealing went to now helping terrorists and causing death.
  • Jerkass Has a Point:
    • Jason chooses not to work for Beacon due to not wanting to be "puppets" under Ozpin. The Argonauts agree, however because of his decision now they're criminals and have lost their only chance to integrate into Remnant. They beat him off-screen for that.
    • A better example is at the end of Arc 1, where Jason admits that while Chaldea does give them a home, they still fight and never live for themselves, and also states that their forms and beliefs will only isolate them from the modern world, more specifically;
      • Atalanta's mentality of the strong live and the weak die, love of the forest, and wish to protect children would be looked down upon and be banished if caught.
      • Medea (Lily) can use her magic to heal everyone, but doesn't really trust anyone, people would try to target and use her for her powers, and her appearance will mean no one will take her seriously.
      • Hercules, no matter how strong, would be treated like a psycho and monster by society, and many would fear because of his mere presence. And thanks to his Mad Enhancement, he'll never be able to live a normal life.
    • Telling Medea (Lily) that as Servants, they already break laws the second they're summoned. Particularly when in battle with other Servants.
    • When he said Ruby might be dead at Mount Glenn and Yang argues, Oobleck states it can happen as a Huntsmen's life is dangerous.
  • Lampshade Hanging: The Servants themselves think it weird when Masterless Servants appear.
  • Language Barrier: While the Servants can speak the same language as the people in Remnant, they cannot read anything.
  • Logical Weakness: As the story itself states, while Heroic Spirits can solve most problems through brute force, they suck at living a normal life, because the lives they lived were from a different time period. Averted with Angra Maniyu. Because he's best at killing humans, not fighting in a Grail War, this gives him an edge against the de-powered Servants.
  • Meanwhile Scene: Usually at the end of the chapters, other Servants are shown after the author notes and how they adjust in Remnant.
  • Mistaken Identity:
    • Thanks to faunus existing in Remnant, Servants with animal features like Atalanta, Cú Chulainn(Alter), and Asterios are just chalked up to being very strong faunus.
    • Medea (Lily) mistakes Roman Torchwick for a Robin Hood who has lost his memories, and its only made worse when Aŋra Mainiiu and Abigail Williams end up thinking so too. It's cleared up when Cursed Arm and Hundred Personas meet him.
    • When the Hassans break the Argonauts out of prison, the Hassans are mistaken for White Fang members because of their skull masks.
    • Xuanzang Sanzang runs into Sun Wukong and automatically assumes he's the Sun Wukong from her legend. Nezha also mistakes him for that Sun Wukong. Played With in that Sanzang at least is well aware that he's not her Sun Wukong, but instead chalks it up to him being her apprentice's counterpart.
  • The Meddling Kids Are Useless: A downplayed example. Sigurd was ready to stop the White Fang meeting with the Paladin when suddenly Sun and Blake get caught and cause Roman to chase them. Had they not been there, Sigurd would have handled the situation just fine.
  • Merged Reality: Word of God states the original story of Fate Disaster would have involved this.
  • Mugged for Disguise: When the Argonauts stumble upon Beacon Academy, Jason and Atalanta knock out two students and put on their uniforms to infiltrate the library and try to find out about this world. Unfortunately for them, Glynda Goodwitch spots them and can immediately tell they aren't students.
  • No-Holds-Barred Beatdown: Done multiple times to Jason.
    • The first time is when Hercules, Atalanta, and Medea (Lily), unleash hell on Jason for stranding them in Remnant. He's left so badly bruised it's described that he looks like purple, swollen meat then himself, and is the first clue that they're being severally handicapped.
    • The second time is when Jason chooses not to work at Beacon under Ozpin, getting all four of them thrown into the slammer. Its said a loud scream was heard that night.
    • The third is when Jason squeals on their hideout after getting beaten by Ozpin and forced back into his tower in nothing but their pajamas.
    • The fourth when Sigurd, Ozpin, and Sanzang beat him up for breaking into the Beacon dance. Particularly on the face.
  • Near-Villain Victory: Has Avenger took the battle against Ozpin, Qrow, and Ana seriously from the start, then Qrow admits they would have died instantly and Salem would have won in taking out high-level threats.
  • No Honor Among Thieves: Jason wouldn't mind betraying Roman at all despite working together. Even saying it out loud to his teammates. To bad Roman overhears it, and rebutted that even if he can't do anything about it, Jason and his team can't escape.
  • No One Could Survive That!: Jason shows shock when meeting one of the Demon God Pillars as they should have died since the Temple of Time.
  • Not So Invincible After All: The Argonauts admit that while Servants are immensely difficult to defeat, humans can beat them under the right circumstances. Proclaiming it's no different from a human slaying a dragon. More so as they're weaker now.
  • No Body Left Behind: More like nothing at all for Amity. As a Black Hole sucks up the entire collusion which includes Haagenti. While possible he's alive, its rather unlikely.
  • Outside-Context Problem:
    • For Remnants it's these new people who seem a lot more stronger than the usual Huntsmen, Servants. Vice Versa, the Servants are seeing weapons with guns, magical Dust that can hurt them, and have no idea where they are.
    • In Argus, it's outlined by Cordovin that Oda Nobunaga came from nowhere with weird little creatures Nobu Chibi's and has no idea what they are. War began in but a moment.
  • Percussive Maintenance: When the Argonauts find a crashed airship, Jason punches the engine. Although it makes an explosion, the engine reactivates.
  • Police Are Useless: At the least, Vale forces are. Ironwood even thinking this as his men were doing more where Vale's forces could do nothing when four teenage girls could.
  • Power-Up: The Goddess Ereshkigal gives Sun a bigger aura and durability for accepting her quest in helping someone.
  • The Reveal:
    • In chapter 15, apparently the Servants in Remnant are in fact not the Servants at all. But instead, copies of them as Da Vinci herself states that the computers state a fragment of their Saint Graphs was split and sent away. Too bad she doesn't think it's true and believes it to be a glitch.
    • In chapter 47, its shown the Will of both Earth and Remnant made a deal. The former gets what's implied to be Grimm to cull humanity, the latter sends numerous of Chaldea's past enemies to kill off the Servants.
  • Scene Transition: Happens during Blake's and Weiss's argument scene about the White Fang. Switches to Roman alongside Abigail and Medea (Lily) who laments about them watching the same scene over and over of some television show with a plot like Blake and Weiss above.
  • Super Mode: Subverted with Jason saying that despite Ozpin's power up, he still looked the same.
  • Surrounded by Idiots: Roman certainly thinks so when forced to work with the White Fang.
  • Tailor-Made Prison: Since Hercules is too strong for a regular prison to hold, his cell uses Gravity Dust to suspend him in the air. His strength is useless if he cannot touch anything.
  • The End of the World as We Know It: Jason fears if numerous Servants, particularly the bad ones, are here, then Remnant doesn't stand a chance. Thankfully, according to Castor, all the Servants summoned are weakened.
  • Trapped in Another World: Because of Jason, him and fifteen others alongside his team were sent to another world. Remnant. Later on because of Cursed Arm, he managed to somehow call even more Servants during the Breach Incident.
  • Unspoken Plan Guarantee: Inverted. During the attack on the White Fang warehouse, Jason makes a plan where after a scene break, all the Argonauts admit it'll work. Moments later Roman chases after Sun and Blake effectively ruining it.
  • Unrealistic Black Hole: During the battle between the Argonauts and Haagenti, it ends with Caenis throwing her trident so hard that it hits the Gravity Dust holding Amity. This causes it to be destroyed and result in a black hole that sucks up Grimm and all of Amity and potentially the Demon God Pillar.
  • Take Over the World: At the end of Arc 1, Jason convinces the rest of the Argonauts to take over all of Vale.
  • Villain Teamup: Both Jason's team now one of Vale's most wanted and Roman's own group end up deciding to work together. Until Roman and his group ditches them at the docks.
  • Wham Episode:
    • In Chapter 27, Gilgamesh is in Remnant at full power.
    • In Chapter 30, Hercules dies.
    • In Chapter 41, Jason meets up with more of his Argonaut crew and sees numerous Servants upon waking up.
  • Would Hurt a Child: Because of Sigurd's actions, he causes Vale to think the Atlas forces children to fight. He gets the short end of the stick once more.
  • Year Inside, Hour Outside: Averted. Despite being in another world, time resumes for Chaldea and Remnant.
  • You Could Have Used Your Powers for Good!: The Argonauts get attacked by a Demon God Pillar who boasts that it has achieved self-awareness and is no longer a slave of Goetia. The Argonauts are disappointed and comment that with its new self-awareness, it could have done something constructive, but instead, it is doing the exact same thing it was doing as a slave of Goetia.
  • You Make Me Sick: Roman and Neo certainty have this when they think Jason is doing things to Medea (Lily). Vowing to end him upon the misunderstanding.