Deku of the Sharigan Hero or Villain

Brother vs Brother

It started as a normal day they had classes with all the teachers they were introduced to yesterday, but no learning things. The day was boring until the heroics class.

" I heard all mights teaching" some kid said excitedly

The talk continued, baukgo then walked over to izuku and asked him

"Tell me how did a fireball make a fist hole in the robot" katsuki whispered so only he heard.

'shit he's got me in a corner' izuku thought

"I'm sorry katsuki, it's just that I can't you that right now forgive me." He said as bowing this caught some peoples attention but they then heard

"IM COMING THROUGH THE DOOR LIKE A NORMAL PERSON!" All might said as he burst through the door

Timeskip to the actual battle teams are the same on the anime

Dekus pov

'Dam were facing katsuki, he's still angry at me, he's probably going to come after me' deku was snapped out of the thought when ochacko came up to him

"Deku what's going on with you and bakugo" uraraka asked

"N-nothing just b-brother stuff" I say smiling with my eyes closed and my hand on the back of my neck

"You know when ever you lie you stutter, I learned that years ago, please deku let me help" uraraka pleaded with the same eyes that itachi had before he put me in the genjustu

I accidentally muttered itachi, I then got angry

"I'm Going after bakugo ALONE, you go get the bomb" I say visibly angry, she agrees

As soon as all might tells us we can go, I spring into the building knowing bakugo he will look for me, or ambush me. I then activate my sharigan and sense strong chakra behind the corner

"Katsuki come out, I can sense your chakra, face me like a man" I say pissed he would even pull this B's

"Fine, so how we doing this all out with quirks or without" he said while not letting his guard down

I then started doing hand signs so fast that it caught him by surprise

"Fireball no justu!" I yell as I sent a massive fire ball towards him

When the smoke clears I see broken pieces of mud on the ground

'clever and fast, but that won't help you beat me' I thought

"You call me a coward, the you pull that shit, your a coward and a lair, your also a bad brother" katsuki stated

When he said bad brother all I thought about was itachi, and unconsciously powered up ofa 100% and charged him about to punch him in the face

I then got a hold of my anger and aimed my fist up at the last second, the look that katsuki gave me I will never forget. After that I felt ashamed and wrapped myself in the capture tape then walked to the spectator area

"Young itachi, what you did was irresponsible, and highly dangerous, your lucky this time but you might not be the next" All might screamed on the com

I then took it out and smashed it, then changed directions for the nearest exit. I then made my way to recovery girls office, she was about to lecture me but then looked in my eyes and stopped.

When he was walking to the change room he saw all might

'here comes a super lecture' izuku thought

"Young uchiha, I'm very disappointed in your actions, if you continue this way you will never be the no.1 hero." All might said

"I know, while I was walking I was thinking, and know I want to give katsuki ofa as a gift, also because I think he deserves it more then me. I have a goal and it's to be a hero yes, but I have another, he only has 1 so I think that would be best" I said looking down, but I heard all might gasp

He then went on one knee and then grabbed my shoulder
" Izuku if you do that I will support you, but I don't suggest it, however I won't stop you. If you do pass it on to young bakugo I will teach him and train both you and him. But your power will fade slowly." All might said seriously, I nodded and asked him to tell katsuki to meet me in the locker room.

I waited a few minutes until he came in and saw me sitting on a bench, he then sat beside me

"So... What did you need" katsuki asked normally

"You were right when you said I was lying, when I was training with all might, he chose me to be his successor, and pass his quirk to me.  That's what I used on that robot, and in the training, I could've killed you *I look down and start tearing up* and I just can't stop think about itachi. For the past few days my night terrors got worse, I've seen crows every where, I hate it, it's like he's cursing me.* I start crying* any way I've decided that you should have all mights quirk not me" I finished by looking at a katsuki tearing up a little

" Izuku, I'm sorry for pushing you as far as you can go, im sorry for calling you a bad brother when I was the bad brother. Fuck, I don't want to take that quirk from you, you deserve it." Katsuki says

" No, I don't want it, theres to much responsibility, responsibility that I can't handle with itachi still around. I think you are the best person to have it." I said clearly and then plucked out a hair

"This may sound crazy but to get the quirk you need to eat this" I say with a straight face

Katsuki then started laughing
"Good one izuku" he then looked at me and saw me being dead serious.

" So what is this power anyway?" He said as he picked up the hair

" Tell all might to explain it to you" he then ate the hair, could feel the difference.

"Izuku always remember your a bakugo and a uchiha" he said as he hugged me

" Yeah, and hey maybe I can help you train" I said brightening the atmosphere

"Yeah, maybe you can" katsuki said as he started walking to the door

" You coming deku"

"Yeah" I said happy