Chapter Text
Authors Note:
The following is the full character concept (Including abilities he doesn't have yet) and will be added onto should a narrative direction lead me to doing so. It does not reflect his full current scope, but rather his endgame scope. This chapter may be skipped if you like, as each ability is described in its first appearance.
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Be advised of ability spoilers as well as a small number of narrative spoilers. Many of my narrative thoughts are still locked in my head, but there ARE things in this chapter that show narrative plot points, including some abilities. The curse of ADHD is that spoilers are inevitable when you're writing a hyper-fixation.
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Síat Rahill
Male, 185.42cm, obscenely muscular, and powerful. Inexplicable endurance and stamina, and a downright unfair amount of agility. And that's without the One for All. Brunette, hazel-green eyes, Irish born.
His quirk: Blood Control. Like Vlad King, he can manipulate his blood and solidify it when it's outside of his body, though he uses it in a... Considerably different manner, creating weapons like swords, axes, and hammers in combat and using tendrils of his blood for traversal.
Secondary Quirk: One-for-All.
Southpaw fighter.
Hero Name: The Bloodline Hero, Vanguard.
Hero Costume: A pair of material skintight pants, for modesty, in case he loses consciousness and the blood-formed clothes melt off, then over that, an opaque, sanguine, 3 piece tailored suit made from his blood, that can proactively harden into armor when attacks are incoming, and return to the opaque fabric-like texture immediately after.
One for All techniques:
Passive: The blood in Síat's body automatically replenishes to above max, boosting his already tremendous strength and stamina, but, as an unfortunate side effect, means he has to leave his excreted blood behind.
Oileán na Smaragaid SMASH!!!!!!!: A blood maul shoots out from his fist at mach 3, liquefying at 3 kilometers.
Donnybrook Affair: Up to 8 Blood constructs, each resembling a previous holder of One for All, form to fight by Síat's side. The six that had unique quirks each bear their original quirk, and all bear full use of Blood Control. All Might's construct also functions as All Might did in his prime. They can speak aloud, bearing the Vocal Mimicry ability, and they fight independently of Síat's consciousness. They can only go as far as 340 meters from Síat before there's a tug between them and him, and at 350 meters, a construct destabilizes and has to be recreated.
Rogue's Dagger: A Combat Knife with a window shatter pommel forms in his hand, and holds its shape until dismissal. If he throws it, it hits whatever he's looking at, traveling around obstacles, or through them if a standard Combat Knife could pass through them completely, like glass or paper, and then extracts itself and flies back to his hand.
Blood Web: Tendrils surge along the floors and walls of a small area (a building floor or an alley) that extends Síat's awareness. If an entity touches the blood, he knows their location and body orientation. The closer he is to the target, the more fine details he can make out, up to being able to see facial features and hairstyles even if they're behind him or invisible, within 2 meters. Does not work on the intangible. First used externally in the Provisional Hero License Exam, but used internally during Present Mic's anatomy lesson on voice production to map his own vocal system as a blueprint.
Vocal Mimicry: using blood to adjust his vocal cords, Síat can sound like anything and anyone, including animals. A Bengal Tiger is his personal favorite.
Variable Blood: He can sometimes come up with situational techniques on the fly, incorporating any combination of the six quirks within OfA into his blood constructs. (This is pretty much to explain any techniques Síat uses that are one offs, like the gag where he uses blood replicas of D&D spells, or the practical way he turns his blood into a glide suit that comes with acceleration.)
Bloodline Armor: during All Might's final battle at Kamino Ward, Síat developed a technique where he encases his full body in blood, shaped to incorporate aspects of each of the six quirk-bearing former wielders of One for All. While in this armor, he has use of those six quirks, his other techniques distance limits and power outputs are tripled (for example, Oileán na Smaragaid Smash travels at mach 9 and doesn't liquefy until 9 kilometers out), and his Donnybrook Affair constructs also have this same armor and their distance limit is tripled.
Crimson Oni: A variant of Bloodline Armor (The variant he uses during the Kamino Ward crisis) that is larger, shaped to appear as an Oni, and has Síat curled up in the torso. He doesn't use most of his enhanced OfA techniques, instead creating new ones using the 6 quirks, in an effort to keep a low profile, except Vocal Mimicry, and has two vocal cords providing a layered voice of a deep bass and an ethereal feminine voice. This form also incorporates Ghost Might's strength, and he only uses this form when he's especially angry, or doing vigilante heroism. Due to the nature of the use he makes of this form, the vestiges, despite this being a variant of Bloodline Armor, refuse to aid him, and the Donnybrook Affair is unavailable. The public comes to call this "Wrath Demon".
Crimson Oni techniques:
Chein Debiru (Chain Devil); Barbed Whips of Judgment: Using Blackwhip, Fa Jin, and a healthy coating of blood control, metallic crimson chains with barbs on them sprout from the Wrath Demon's arms, acting as whips and painful bindings.
Cambion's Assault: Using Float and Fa Jin, the Wrath Demon sprouts cosmetic bat-like wings and takes flight.
Domain Expansion, Sanguine Circle: Named for the popular ultimate techniques in Jujitsu Kaizen, utilizing Danger Sense and Gearshift, the Wrath Demon surges his blood outward, engulfing a large area (Roughly the area of a football (Soccer, for the Americans) field) in blood, and creating walls around it. The coating acts much in the same way as Blood Web, but without the gaps that could be stepped through. The walls are nearly impenetrable by force, though still weak to heat, requiring a level of force on par with or higher than the Wrath Demon's. By adding Float, this ability works in the air, but creates an enclosed sphere with rapidly declining oxygen as the blood feeds on it, giving 12 minutes of clean air before breathing becomes labored. The floating sphere has various shifting platforms within it that move chaotically at varying speeds. First used during the Overhaul Arc, after Síat dies and Eri rewinds his death. That incident is also the one and only time when the Donnybrook Affair is partially available to him while in the Crimson Oni form, as Ghost Might, Nana, and Bruce also take on Crimson Oni armor.
He spent his first ten months in Japan (in addition to getting trained by All Might, because he replaced Midoriya in this version of the story) learning Japanese from All Might and, after getting One for All, also the eight vestiges, so he can thrive in UA, introduce himself properly, and answer that fundamental question.
"シアト・ラヒルと申します。アイルランド出身です。ヒーローになるために来ました。"
("My name is Síat Rahill. I am from Ireland. I came here to become a hero.")
「なぜヒーローになりたいのですか?」
("Why do you want to become a hero?")
"平穏のために。人々が景色を楽しめるよう、誰にも知られずにゴミだらけの浜辺を掃除してくれる人たちのために。泣き声が笑い声に変わる、その瞬間のために。そして、私にできることがあるのにそれをせず、その結果悪いことが起きてしまったなら、それは私のせいだからだ。"
("For the sake of peace. For the people who quietly clean up trash-strewn beaches so that others can enjoy the scenery. For that moment when tears turn into laughter. And because, if there is something I can do but fail to act—leading to a bad outcome—then the fault is mine.")
He was, funnily enough, already training at the beach before he met with All Might during the Sludge Villain attack on Bakugo.
He has no family back home, and considers the previous holders of One for All his family now. He calls Nana "Ma". His Vocal Mimicry and the Donnybrook Affair's ability to speak didn't happen until after he had Present Mic teach him how vocal cords and lungs work, pretty much relying on his telepathic communication with them until then, though the Donnybrook Affair was available to him from day one of having One for All.
Dorm Room
Irish flag hanging on the wall, big enough to be the first thing you see when the door opens. The bed, desk, and wardrobe were the ones provided by the school, though the Sham-Rock sheets were his own. The rest of the walls are coated in posters of various Irish Heroes, including Sham-Rock, a few of which actually went to UA, which inspired his enrollment. He also has a recliner, which he sleeps in, generally only using his bed to relax, because sleeping while completely horizontal is problematic due to his sleep apnea, but sleeping at an angle tends to mitigate that issue. The recliner is pink, because while his favorite colour used to be Sanguine, by the time Heights Alliance is built, pink has become his favorite colour. For obvious reasons.
"Ma" taught him to dance via frequent private uses of Donnybrook Affair because he took one look at Mina Ashido and decided he absolutely had to see what she looks like in the light of the full moon. He and Mina have done movie, dinner, and even beach dates since day one, but the dance lessons finally culminated on the roof of Heights Alliance, the night of the Room Tours, with his Donnybrook Affair playing instruments made of blood constructs.
He calls most of the previous holders by name, but Nana is of course "ma", and All Might... well, he feels weird calling him All Might while the REAL All Might still lives, so he calls his OFA spirit "Ghost Might".
The following is the conversation between Síat and Ochako immediately following his rescue of her from the 0 pointer during the entrance exam. (25 villain points and 45 rescue points by the way)
「そもそも、なぜヒーローライセンスが欲しいと思ったのですか？」
("To begin with, why did you want a hero license?")
"実はね、ある人を救えなかったことなんだ。当時は資格を持っていなかったから『個性』を使わずに助けようとしたんだけど、できなかった。力が足りなかったんだ。僕が異常なまでの怪力を鍛え上げたのも、実はそれがきっかけだった。でも分かっていたんだ。もしあの時『個性』を使っていれば、母さんは生きていただろうし、父さんに勘当されることもなかったはずだって。その事実を背負って生きていく中で……僕はヒーローになることを選んだんだ。二度とあんなことが起きないように。そして、僕の手の届く範囲にいる子供が、あんな選択を強いられることが二度とないように。"
("The truth is, it’s about someone I couldn’t save. I didn’t have a license back then, so I tried to help without using my Quirk—but I failed. I simply lacked the power. That’s actually what drove me to train until I achieved this superhuman strength. But I knew the truth: if I had just used my Quirk back then, my mother would still be alive, and my father wouldn’t have disowned me. Living with that reality... I chose to become a hero. To ensure that something like that never happens again. And to make sure no child within my reach is ever forced to make a choice like that.")
「それはあなたのせいじゃなかった……」
("It wasn't your fault...")
"実際、そうだったんだ。自分にできることがあるのに、それを使わずにいて、悪いことが起きてしまったら……それは自分のせいで起きたことになる。もし自分に『何一つ』できることがなかったのなら、自分のせいじゃないと割り切れたかもしれない。でも、手段はあったんだ。ただ、それを使うべきじゃないとされていただけで。もう二度と、そんな理屈に邪魔されたりはしない"
("That was the reality of it. If I had the means to do something but didn't use them, and something bad happened as a result... then the fault would lie with me. If there had been absolutely nothing I could have done, I might have been able to accept that it wasn't my fault. But the means were there—it was just that I was told I shouldn't use them. I will never let that kind of logic stand in my way again.")