The Chimera Hero (BNHA/MHA X OC)

Another One?!

When school started Yuki decided to stay in the hospital to do some final checks to make sure that nothing is wrong with her body while Kentarou, Izuku, and Ayako were walking to school they were immediately greeted by strange looks from everyone.

"What wrong?" Kentarou asked, being completely oblivious.

"You asked for Deku's help yesterday, right?" Katsuki asked calmly for some weird reason as he tried to continously think of reasons as for why Kentarou would need Izuku's assistance nobody else's.

"Oh? He just needed help on saving someone since even RG wouldn't be able to save that someone without complicated machinery while Kentarou couldn't exactly just inject her with an animal's DNA for healing since the body was in a near death state" Izuku explained which is not really a lie but some crucial information was missing.

Everyone seemed satisfied with that explanation since Izuku really was the best call at that moment while Ayako just looked speechless. Aizawa arrived with more bags under his eyes than normal.

"Another student will be joining us starting from today" Aizawa announced then wrapped his wings around himself.

"Come on Dad!! You should at least signal for me to enter!!" Yuki complained with a puffed cheek.

"Good Morning everyone my name is Yuki Aizawa and yes I am Aizawa-sensei's adopted daughter also fun fact I am the real twin of Kentarou Amajiki but I will be the one to marry him!!" Yuki announced which caused Kentarou to do a spit take which also made everyone look at him with bewildered expressions while Ayako just straight out let her bloodlust out.

Kentarou really wanted to explain yet he couldn't find the words for it making him really scared but then he remembered that Yuki is the one at fault for this mess so he could only glare at her but when he did he only saw a mischievous smile plastered on her face making him angry and annoyed.

Kentarou only sighed and decided to ignore everyone as he is still tired from creating a totally independent body from his quirk which is unexpectedly incredibly taxing. 'I guess this is the payment for making life from nothing and messing with fate' Kentarou thought.

"Aizawa-sensei, I think my Chimera quirk is damaged and is currently repairing itself so I am not going to use it" Kentarou said then slept on the desk but everyone who heard that felt shivers go down their spines as Kentarou had always been the glue that fixed their mistakes using his incredibly versatile quirk and now he is out of commission.

"Ayako and Yuki, you two have the task of helping him out in repairing his quirk!" Aizawa ordered as even he didn't like the idea of Kentarou being out of commission since he became dependednt and captivated by his brews.

"I can still use my other quirks you know" Kentarou muttered but went back to sleep. However this piece of news didn't make anyone feel better as they didn't like Kentarou whenever he says 'Kentarou Synthesis Thirty Four' since he feels emotionless and cold in a sense while Yuki just didn't care about that piece of news.

Another change occurred as Kentarou's ears started to become pointy as well as overlapping wings appeared for a brief second, it seems Kentarou is purposely using his Fairy quirk, Sword Summon, and Armor Generation.

The rest of the class and Yuki were incredibly excited while Yuki is just a giant lump of curiosity and smiles making the mood of the class pretty much serene. Lunch time came so the protagonist gang met up with their pals in Class 1-B with Yuki in tow.

"Are you into selfcest now?" Aya couldn't help but ask while Darel only nodded in agreement which made Kentarou's cheeks twitch.

"Selfcest?" Yuki couldn't help but ask as this was the first time she ever heard of such a word.

"You don't need to mind them, the two of them have one or two screws loose" Kentarou said as he ate some mapo tofu, Yuki could only nod then start to eat her spicy curry.

Ayako had been quiet even now, more so than usual that is which is making everyone uncomfortable and think that she was angry as hell since no one had ever challenged her position as Kentarou's wife so openly but in truth she was just too shocked as her husband's charm was just too much, right? Thankfully most girls actually find their destined one but Yuki was different, she didn't know why but she thought that they would be sisters in the future.

Ayako shook her head and smiled thinking that it might not be bad since it was better to have many allies.

"By the way Midoriya-san, what exactly is your quirk?" Yuki couldn't help but ask since everyone she asked answered differently or directly ignored her.

"He has two quirks one that generated tremendous amounts of energy while the other is the one that transforms that energy into mechanical constructs though his mechanical construct quirk was stolen when he was still young and he didn't have any way to utilize the energy his quirk generated before he met All Might but that came with a cost of breaking his body from inside whenever he fails to control it" Kentarou answered.

"My quirk returned to me after eating away at Kentarou's stamina since apparently it was transfered to him during the battle with All For One" Izuku answered making Yuki nod and think that Kentarou is really amazing.

"Kentarou is actually treated as a last line of defense if all things failed and tactical Hero according to Nezu" Ayako added making Yuki more impressed as even the principal who she met and felt that he was not a simple creature holds him in such high value.

The day continued like normal until the basic heroics training making everyone gulp in excitement since for the first time they might be able to defeat Kentarou but at the same time they felt dejected that this was the only way for them to even stand a chance.

"Before I go Kentarou pair up with Yuki so that you can teach her whenever necessary" Aizawa said before he left making the class nod in agreement but they forgot that due to this they wouldn't be able to spar with Kentarou.