Basically in this story the Heroes give Izuku a mission, a mission that brands him a traitor but ultimately saves everyone. Now then Izuku's Sharingan in the right eye is the Kamui and in the left is Tsukuyomi and Kotoamatsukami now Izuku's quirks a...
Izuku and Toga are completing a mission when all of Izuku's old class shows up
Toga: Uhhh... I can't fight all these guys
Iida: Hey who's the new guy
Izuku: I'll take care of them
Izuku uses the Kamui to teleport Toga away and this causes his class to recognize Izuku immediately
Iida: Iz- Izuku?
Izuku: Hello friends
Bakugou: DEKU!!
Bakugou charges at Izuku but is put under a Paralysis Genjutsu
Izuku: You can't beat me Kachan... None of you can
Todoroki: Why did you betray us Izuku!?!
Izuku: Because of Ochaco
Momo: Then shouldn't you hate Villains!?!
Izuku: I blame the Heroes for failing to arrive in time to help... And Kachan... Your also a contributing factor... You bullied me almost my entire life... I was able to ignore the urge to be Villain until Ochaco... So sleep well knowing your a big reason of my betrayal
Todoroki: Izuku you helped overcome my hatred! Let me do the same for you!
Izuku: It's to late for that Todoroki
Todoroki: Why!?!
Izuku: I killed All Might
All of the sudden Izuku sense something from Katsuki... Something... Familiar
Izuku look at Katsuki's eyes and sees what it is
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Izuku: Interesting... You posses the Sharingan
Katsuki: What?
Izuku grabs a mirror from one of the dead bodies and shows Katsuki his eyes
Katsuki: H-How?
Izuku: We are descendants of the Uchiha clan though interestingly we are full blooded Uchiha despite the fact medically speaking that should be impossible but... Here we are
Katsuki: I will get revenge against you Deku!! If it's the last thing I do!!
Izuku: You can try... You have a long way to go before you reach my level
Izuku starts to teleport away but before he fully disappears he says
