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Summary[]

Ren Fuji, also known by his Arcane Title Zarathustra Ubermensch, is the substitute of Longinus Dreizehn Orden #13 member Mercurius, and is the main protagonist of Dies Irae.

Ren was simply living a normal yet plain lifestyle in Suwahara City, going to school and hanging around with his childhood friends Shirou Yusa and Kasumi Ayase. Two months before the events of Dies Irae, Ren and Shirou fought against each other with an inch of their lives after the latter grew tired of their plain daily lives, desiring to experience unknown.

After Ren recovered, he thought he could go back to his normal life even without Shirou. However, that would no longer be possible after his encounter with a mysterious girl during a trip to the city's museum. Any semblance of his normal life shattered completely once the Longinus Dreizehn Orden enter Suwahara City, intending to use his home city as a ritual to bring back their leader, Reinhard Heydrich, as well as to rid the World of Foreknowledge.

Powers and Stats[]

Dimensionality: 3D | 3D | 3D | Devoid

Threat Level: At least Demon+, likely Dragon- | At least Demon+, likely Dragon- | At least Dragon-, likely Dragon+, possibly Maoh+ | Omni-

Powers and Abilities:

All abilities and weaknesses of Ewigkeit, Self Time Manipulation and Speed Amplification (Ren's Ber'iah, Overture, allows him to slow down his perception of time, while also increasing his own time in turn with no theoretical limit; When controlled by Marie, she was able to increase Ren's own speed by hundreds of times and even up to three thousand times his normal speed from Yetzirah), Durability Negation (Marie's curse instantly decapitates someone regardless of their durability as the curse itself does the decapitation via contact with their neck), Death Manipulation, and Immortality and Regeneration Negation (All Types and High Godly; The curse of Marie can even kill the likes of Mercurius, a blade whose killing ability is a match against Mercury and Gold. It is also capable of instantly killing the Apostles of the L.D.O as well as even the immortal Einherjar when used by Ren, with said Relic even noted by Ren to being like that of Machina's fists which can bring death to anyone in a single strike), Reactive Evolution (Ren has shown on multiple occasions that he can adapt to a certain level of strength, gaining a resistance to things pressuring him, and becoming stronger than he was a few minutes ago both physically and with his Law's Craving; Ren has also shown to gain new abilities as his Ber'iah has changed from what it once was into another on two different occasions), Limited Ability Acquisition (Due to Ren being a living Ahnenerbe, he possesses the unique ability to wield and control any other Ahnenerbe regardless of compatibility, barring the Longinuslanze Testament)

Has the basic Resistance's of those from Ewigkeit in addition to: Fire Manipulation (Endured the flames of Eleonore), Poison Manipulation (Endured the corrosive poison of Tubal Cain), Lightning Manipulation (Endured the lightning of Tubal Cain, using the Ber'iah of Beatrice Waltrud Von Kircheisen)

All previous abilities from All Routes, plus: Improved Time Manipulation via Finale (In Finale, Ren increases his speed further by a thousand-fold while simultaneously slowing down those around him by "tens of thousands of times". He can also do this further, enabling further increase in speed and time slowing), Berserk Mode and Transformation (Physically changes into this and is overwhelmed by an intense bloodlust)

All abilities from Marie and Rea Route on an unimaginably higher level. Due to reaching the Atziluth Degree, Ren has the following abilities of a Hegemony God, Further improved Time Manipulation (His Law brings a "stoppage" to everything in creation, from the very universe/multiverse to the very Throne which lacks the concept of time.). As a God with a Legion, he has access to the following: Fire Manipulation, Transformation and Intangibility (Elemental; Can use Kei's Ber'iah which generates flames, and allows her to become fire itself), Lightning Manipulation, Transformation and Intangibility (Elemental; Can use Beatrice's Ber'iah which generates lightning, and allows her to become lightning itself), Existence Erasure and Conceptual Destruction (Can erase anything as long as it has a history while using Michael's Ber'iah, which includes concepts), Poison Manipulation (Can use Kai's Ber'iah, which creates a poison so potent and concentrated it instantly rots and decays anything it makes contact with, including attacks from those such as Wilhelm's stakes), Shadow Manipulation and Paralysis Inducement (Can use Rusalka's Ber'iah to create shadows capable of binding and stopping someone from moving, being able to stop one's breathing or their very soul), Necromancy (Can use Lisa's Yetzirah which can take control of the dead), Mind Manipulation (Can use Valerian Trifa's inherent power, who in his original body had the power to see and hear the thoughts and memories of both living and dead things, even perceiving those that the target has long forgotten.), Power Nullification (Shirou has the ability to enact the causality of a God's own self-destruction, which can allow his attacks to hit the enemy regardless of their defenses and bring about their end)

Physical Strength: At least City level, likely Mountain level | At least City level, likely Mountain level | At least Mountain level, likely Country level, possibly Multi-Continent level | Meta Dimensional

Attack Potency: At least City (Is capable of trading blows with the normal members of the L.D.O, each of whom are powerful enough to harm one another in battle; Even the normal Apostles are durable enough to completely tank the strongest conventional weapons, as well as carpet bombings and even nukes were deemed worthless to use against them), likely Mountain (After growing stronger overtime, he could trade blows with and even kick aside Tubal Cain, the strongest of all the normal members of the L.D.O sans the Commanders and the twin leaders. Tubal Cain is also consistently stated to have the power to split apart mountains). Can ignore conventional durability with his Relic | At least City, likely Mountain (Should be comparable to his other routes, if weaker due to the nature of his Craving causing him to only rely on his soul. Was able to defeat Machina and later went on to fight with a Sensory of Mercurius and a weakened/incomplete Reinhard, though was unable to truly bring harm to either of them) | At least Mountain, likely Country (Stronger than normal due to being boosted in power by the Throne of Mercury. Can contend with the Commanders at their fullpower, who as undying Einherjar and Slaves of War, became even more stronger than ever before their ascension with Reinhard in the Berlin Ritual), possibly Multi-Continent (According to Masada, Finale Ren is one of four people who can break the Divine Vessel; the other three being the two-leaders of the L.D.O and Machina albeit likely through his abilities) | Meta Dimensional (As a Hegemony God, Ren is a God who possess the ability to paint over all that is in creation. Everything from the universe/multiverse and all of its nigh-infinite laws to even those that exist beyond it such as the Singularity, a blank white canvas that exist underneath the world and is where all laws and concepts sprang forth from, and the Throne, a hyper-dimensional space indescribable in nature and lacks the very concept of time, all follow suit to the changes and modifications of that God's Craving, including laws and concepts like higher-dimensions. His fight with Reinhard was fierce enough to send ripples across the multiverse, leading to a tear in creation that sent them down to the Singularity and going further to reach Mercurius' Throne. In the Three Colors Route, his soul let out a cry that shook the Throne as he prepared to fight Mercury and Gold)

Durability: At least City, likely Mountain (Was able to catch and endure taking Tubal Cain's blow, even take on the lightning used by Cain) | At least City, likely Mountain (Took a punch from Reinhard and was still conscious to try and keep going) | At least Mountain, likely Country (Survived many attacks from the Three Commanders at their fullpower), possibly Multi-Continent (Could be comparable to his AP) | Meta Dimensional (Is Reinhard's equal in Marie Route. Took many blows from Reinhard and Mercurius throughout their fight in the Three-Colors Route)

Speed: At least Supersonic+ (Can keep up with Kei in combat, whose fast enough to casually deflect bullets. Even the weakest of Apostles are capable of dancing around bullets, and Ewigkeit enables one to showcase martial prowess at beyond sound speeds.), likely Massively Hypersonic+ in base (Grew in strength overtime to keep up with Cain's lightning, if barely). At least Massively Hypersonic+, likely higher with Overture (Even through an incomplete prayer, Ren's Ber'iah slowed down his perception of time enough to perceive lightning moving to a crawl, while also buffing his speed in turn to blitz it. After mastering and completing it, he is capable of blitzing Wolfgang Schreiber in his base form to the point of the latter to use Yetzirah to escape his and Kei's pincer attack, and pushing further to its limits allowed Ren to perceive time to a near halt that he was able to even briefly perceive Wolfgang, however the latter was too fast for him to fully see let alone touch him. Has also performed a feat of this scale against Reinhard towards the near end prior to fully emanating) | At least Massively Hypersonic+ (Was able to trade blows with Machina, who intercepted him from taking down Cain with his incomplete Ber'iah. Even after losing his original Ber'iah, Ren was able to keep up with a restricted Reinhard) | At least Massively Hypersonic+, possibly Relativistic+ or Speed of Light (Upon gaining Finale, Ren's own speed was increased by a thousand-fold, and he can slow down time further to make himself faster. He also performed a feat of this scale while in Finale. The narration hypothetically states Ren could accelerate to the point of reaching the speed of light, something also theoretically stated before when Marie took over him and used his Overture.) | Omnipresent in his territory (A Hegemony God is all-present wherever their Law is painted over, thus they are everywhere and can perceive everything that happens in those territories)

Intelligence: Above Average. Ren is an adapt learner who was able to learn the basic fundamentals of Ewigkeit in a matter of weeks, something that took even members of the L.D.O. decades to learn and master its power (Though this can be said as a matter of Ren's connection to Mercurius, his creator as well as the one who made Ewigkeit for Ren to inherit and master). With it, Ren was able to quickly form his Ahnenerbe and even obtain his Ber'iah, using his newfound powers to combat those who had decades of experience fighting in combat and war. However, he is also at times reckless and not quite tactical or strategic in combat, often having to rely on others to do the plan of fighting instead.

Stamina: High (Die Ewigkeit is what imbues the user with stamina that defies physics and thus, should be comparable to Wilhelm Ehrenburg; Can fight against members of the L.D.O. even while being affected by abilities such as Wilhem and Cain's Ber'iah's) | High (Despite losing Marie and any other soul that was used to fuel his Relic, Ren was able to endure fighting for a while longer against Reinhard despite only having his own to rely on due to his new Craving's unique nature) | Limitless (His power comes from the Throne due to his direction connection to Mercurius. Is also capable of fighting a lengthy battle with the Three Commanders at their fullpower before emanating) | Limitless

Range: Extended Melee range with Margueritte Bois de Justice | Extended Melee Range with Thrud Walküre, likely higher (should be capable of shooting out bolts of electricity with Beatrice's Relic) | Extended Melee Range with Scythe blades, Higher with Finale (His Ber'iah technically affects anything that is in his line of sight or enter his range) | Transcendent (Hegemony Gods emanation constantly expands until all creation is painted in their Law, from the very universe/multiverse to even the Throne, an indescribable space of higher-dimensional nature that also lacks the concept of time)

Weakness: None Notable. | Eine Faust Scherzo is a Ber'iah where its Craving outright denies the dead to live, which extends even to those that may help power Ren's Relic including that of Marie, a Transcendent God who technically died originally in her human life. Thus, Ren has to use his soul to power the Relic and Ber'iah | Is in a constant state of bloodlust where he may not think straight at times in order to annihilate his foes. Despite drawing power from Merc's Throne, Finale is still of the Ber'iah Degree and, due to being of Hegemony nature, suffers the weakness of its Law's effect being affected by how many are in his range. | His Law's ability to nullify attacks against him is only effective against those who are equal or lesser in strength against him, the same also being said to those equal in power to him (though in this respect, he can force his Law to temporarily halt, mitigating this part of his Law's limitation to an extent). Using Shirou's ability to cause destruction to God's is as fatal to him as it is to others, putting him at potential risk if he misuses it. Additionally, Shirou's ability is also dependent on his own level of power, being only effective up to those equal in power to him.

Key: Common Route/Marie Route | Kei Route | Rea Route | Hegemony God

Arsenal[]

Ren Fuji Ahnenerbe

Margueritte Bois de JusticeMargueritte Pillar of Justice: The Ahnenerbe of Ren, a Fusion Type Ahnenerbe. It is the guillotine that was used during France's Reign of Terror, a murderous tool that killed many counter-revolutionaries in those times. The guillotine was also the catalyst that brought Marie into the world in her original life as a human, as well as the same tool that brought about her end as soon as she reached adulthood. It is thus the only tool in all of creation that can house her soul outside of her personal domain of the Twilight Beach.

Not only is this an Ahnenerbe that can harm the very soul itself like all Ahnenerbe, but it can even allow Ren to utilize Marie's curse. Said curse, one which caused anyone who comes into contact with her or those she touches to be instantly decapitated when she was alive, became even more powerful due to Marie's soul ascending to that of a Transcendence God. By weaponizing this curse, Ren can instantly decapitate his target by merely making contact with one's neck, even bringing an end to their life regardless of their immortality or regeneration such as those granted by learning Ewigkeit to even that given to them by Glashimeir.

Due to Marie's soul being housed in there, Marie herself can take over Ren's body in certain situations such as preventing him from having a mental breakdown, where she can use the guillotine and her curse to fight in his place and even utilize Ren's craving, to which she can use it with as much efficiency as Ren if not more.

Depending on the Route, Ren could also gain other Relic's in his possession, such as Beatrice's, Kei's, Rusalka's, and more that are part of his Legion as a Hegemony God.

Noteworthy Techniques and Abilities[]

Ren Fujii Briah Overture

The Sun, since time immemorial, his brother-stars in song had rivaled. Bolting ‘long a path predestined, with thunder echoing in his wake. And with swiftness — swiftness beyond measure –, his perpetual cycle fought. His path ravaged, to ashes scorched. Unknown, peerless supremacy, by heav’ns wrought. Equal in beauty to the first of your days!
Ber'iah- Eine Faust Overture/Finale!

– Ren enacting his Ber'iah

Eine Faust OvertureBeginning of the Ephemeral Moment: Ren’s Ber'iah, Transcendence Type, and one he obtains in most routes and is his primary or only main one depending on the course of events. Derived from his desire, “I want to experience this moment for an eternity”. Inspired by his experience being in the Twilight Beach and wanting to enjoy his plain yet simple daily life of normality a little longer, this desire manifests itself in the form of slowing down his perception of time, while increasing his own time, giving himself the apperance of an incredible speed bppst to an outsider, which is evidenced by the simple glowing effect on his eyes. In effect, this allows Ren to perceive things as "frozen", with even something like lightning itself appearing no more than being completely still in his world with his first use of his Ber'iah. Ren can slow down time as many times as he wants, from slowing it down by ten to as much as a thousand times, even reaching as much as three thousand times when Marie was controlling Ren during Rea's route. With a world only he himself can perceive, Ren can accelerate himself and slow down time to the point of all things appear to be slowed to a near halt. This is the result of a power that, limited only by his willpower, can enable him to accelerate without limit and to have time halt to be in that everlasting moment.

Ren Fujii Briah Scherzo

Eine Faust ScherzoMiddle of the Ephemeral Moment: Ren’s Ber'iah in Kei's Route, Hegemony Type. Derived from his desire while using Beatrice's Ahnenerbe, "I do not want the dead to live". A desire born to reject anyone of the undead, Eine Faust Scherzo ability is to deny the "very concept of death". What this means is it allows Ren to kill anyone who is undead, those who died yet still live on, a world that rejects anyone that should have died in the first place and stayed as such. In short, Ren can destroy immortal and undead beings and have them stay dead for good, making it a very powerful ability against any who are not of the living, with its power being able to affect even the whole of Gladsheimr, a castle that houses the millions of dead souls Reinhard has devoured, with it slowly dismantling the hell of infinite resurrections.

However, this also comes as a double edge power. As Ren's desire is to kill the undead permanently, this power is ineffective against those of the living as they are people who have yet to die. As such, Ren can only exercise this power when facing off those who are not of the living, as otherwise, he can only rely on Beatrice's Ahnenerbe to fight. Additionally, Scherzo's Law prevents any potential souls he would have otherwise had, preventing even Marie's soul from being with him, of whom is also still technically dead despite her paradoxical nature of also being "alive", forcing him to power his craving through his own soul, which can weaken him over time and even lead to death by having his soul be used as fuel.

Ren Fujii Briah Finale
Eine Faust FinaleEnding of the Ephemeral Moment: Ren’s Ber'iah in Rea's route, a Hybrid Type of both Transcendence and Hegemony that he obtained after gaining power directly from Mercurius due to his connection to him through a fusion of the latter's divine blood and Lotus' soul. It is similar to Wilhelm's Ber'iah, which physically changes Ren's form to that of black skin and red hair, with the symbol of the Snake of Mercury glowing on his body along with having multiple guillotine blades protruding from his back which he can use for both offense and defense. In this form, anything that is within Ren's line of sight has their time completely slowed down tremendously, by tens of thousands of times, leaving them for Ren to decapitate them. Additionally, Ren's speed is boosted by a thousand times his previous speed in Overture and retains his original Ber'iah's ability to increase his speed, making him faster while his opponents are slowed down to a halt.

Ren Fuji Atziluth Normal Form

Vast is the sea, its waves reaching horizons far and wide; eternal is the radiance of its azure womb. And so let us ride this moment and dash forth, swift as light, quick as a star eternal. Hear my plea, and grant this one wish: the world longs for an era of peace; days that know not strife. In a world where only peace is lord, and men join hands in liberty… Allow me to sing but this, O Maiden:
Let the flow of Time halt in its tracks! For the world is but a shade beneath your beauty!
I wish upon your unending star – guide me to heights unknown, O Maiden!
"Atziluth— Res Novae— Also Sprach Zarathustra!"

– Ren activating his Law

Res Novae - Also Sprach ZarathustraA tale of transcendence - The tale of the new world: The manifestation of Ren’s Law, derived from his desire “I want to enjoy this moment forever” and "I want time to stop". Based on his wish to forever cherish the bright moments of his life and to protect the smiles and warmth of his friends and loved ones, this law causes all of creation to be put to a complete stop, affecting even the Throne itself which possess no concept of time.

Resulting in a world where the moment is frozen eternally, a law which imposes the concept of stagnation to reject any kind of change, everyone and everything caught in it are forever stopped provided they are not as strong as or superior to Ren. However, even if one were to be as strong as Ren and escape eternal stagnation, the latter's Law will still be able to halt them in place for but a moment, giving Ren the chance to kill them or even evade their attacks. Even just merely starting to emanate it has such a strong effect in stopping not only Machina's Ber'iah from ending him, but also causing all Three Commanders at their fullpower to stagnate completely when previously they were all able to outright resist the effects of his Finale Ber'iah.

Additionally, Ren can also allow anyone in his territory to move in his World of Stoppage, while leaving anyone else to be frozen as a statue for all eternity. Thus, as a law born to protect others, it has the greatest defense amongst all Hegemony Laws, being able to even temporarily halt the completion of Hajun's Law during the latter's whole reign on the Throne for 8,000 years (albeit when the latter wasn't actively focusing on forcibly emanating his Law).

Ren Fuji Atziluth True Form

Ren's Atziluth in its true form during the Three Colors Route, accompanied by Shirou and Michael as part of his Legion.

  • Kamunagara: The physical manifestation of a Hegemony God's Law, existing as a universe within them. A Power Vision to conquer all, a feature shared by all Hegemony Gods and their Legion. The manifested Kamunagara can be manipulated to move and attack, with the user's Craving being used as the source for attacks. The user can also potentially take their target inside their Kamunagara, whereupon they are essentially inside that user's World from which there are no blind spots around nor can surprise attacks be made. When summoned, however, the Kamunagara can potentially suffer damage, of which some are received back to the user though due to simply being a Power Vision, the user will not die even if it were erased though they will still suffer major damage in the process. Ren's Kamunagara takes the form of countless amounts of gears and clocks.
  • World of Zero: Ren's Law not only enforces the concept of stagnation throughout all of creation, but he can also apply it onto himself that manifests as a "World of Zero". What this does is create a sort of "Time Armor", a state of existence where his time is eternally zero, never moving or passing for even the briefest of moments in time. This kind of protection is powerful enough that just after starting to emanate, it allowed him to resist and survive Machina's Ber'iah by putting his time (and thus, history) to "zero", disallowing Machina's means to outright erase through his accumulated history of time.
  • Legion Reincarnation: An ability possessed by very few Hegemony Gods. Souls that are taken under a Hegemony God's Law can be dyed in their color, being granted Divinity and putting them to a level of existence equal to that of the God themself, becoming Pseudo-Gods as a result. So long as these souls never leave their God's territory, they will have divinity equal to theirs. Souls that are granted Divinity are also protected by their God's law; in Ren's case, they are able to move in his prison of eternal stagnation and are protected by his World of Zero. Of those in Ren's Legion, they are Shirou Yusa, Michael Wittmann, Theresia (Rea Himuro), Beatrice Kirscheisen, Kai and Kei Sakurai, Anna Maria Schwagerin, Lisa Brenner, and Valerian Trifa.
    • Michael Wittmann: The best friend of his previous incarnation Lotus Rechhart in their past life. He has the power to end all phenomena with a single strike of his fists, being able to erase the attacks of even Mercurius himself.
    • Shirou Yusa: His best friend and one of his allies throughout the fight against the L.D.O., Shirou has the power to destroy anything that is of divine nature by bringing about the cause of one's self-destruction. This very power thus drives any god to suicide regardless of their defense or state of mind. However, this power brings about destruction to everyone including Ren himself, potentially killing him if if he's not careful.
    • Theresia (Rea Himuro): A girl who is either his ally in one timeline or his lover in another. While she doesn't fight at all, Theresia instead stabilizes his Law and, through sacrificing herself and the souls of others in Ren's Legion, she can boost Ren back to his full power after resisting Hajun's Law for 8,000 years.
    • Beatrice Waltrud Von Kircheisen: A German soldier with the desire to be a light to guide her comrades on the battlefield. She has the power to wield lightning and become lightning itself.
    • Kai Sakurai: The third generation holder of the mantle of the 'One Who Devours Death', and Kei's older brother. He has the ability to use poison that rots anyone and anything down to the very soul itself.
    • Kei Sakurai: A Japanese girl who is either Ren's enemy, ally, or even lover depending on the timeline. She has the power to become fire and use fire as her attacks.
    • Anna Maria Schwagerin: A witch who has lived for centuries and with a connection with Ren's past life. She has the power to manipulate shadows that devour others as well as bind others down in place, affecting everything including their soul and mind.
    • Lisa Brenner: A nun with a dark history and dark power. While she herself cannot fight directly, she can instead manipulate the dead to have her fight in her place.
    • Valerian Trifa: A priest with a complex history and character with a connection to several of the L.D.O. members and Theresia. He has the power to read the minds of anyone he meets as well as their memories like they were books.
  • Power of the Legion: On top of his ability to summon his Legion to fight at his side in battle, Ren empowering his Legion to Godhood goes as far as to enable him to utilize the powers and abilities of those under his domain. Although not used in the same degree as another use of Legion Reincarnation like Reinhard, Ren possessing this power should allow him the ability to use any of those that are a part of his Legion including Michael's and that of his Apoptheosis, Shirou.

Quotes[]

You ran away. You couldn't bear to live in reality. We cannot be eternal. You who became phantasms. Whatever you do, no matter how hard you try. You won't ever grasp a single thing with your hands!

– Ren Fuji to the Three Commanders

Us weirdos better pack up and leave. I’m not cut out for this, anyway. A wish to stop everyone but myself and those I like. What kind of world would that be? Honestly, I’m glad we fell here.

– Ren Fuji to Reinhard Heydrich

Just a while ago, I thought I had no choice in the matter. But not unlike you, I was saved by having a good friend. That’s the one thing I am truly grateful for.

– Ren Fuji to Mercury and Gold

Notable Matches[]

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