You, Deku, Bakugo, Shoto, Kaminari, Denki, Kirishima, and your girlfriend, Uraraka was all on a mission together. It was very strenuous, and you had to take down a villain named Mitosis, who could split into copies exponentially, basically cloning himself. You had to use your Quirk a lot.
That’s when it started.
Your Quirk had a catch: if you use it too much, it takes over your mind, and makes you violent to nearly anything and anyone you see. With your spiraling, you was able to knock out Mitosis, but then you started attacking your friends.
Kirishima: “Whoa, hang on! Why are you attacking us, we’re your friends!”
Kaminari: “H-hey, Ochako! Do you know why they’re attacking us??”
Ochako: “They told me about this, they must have overused their Quirk! I knew about it, I just didn’t know what point of using their Quirk was overdoing it!”
Bakugo: “Tch! And you didn’t think to tell us, why?! I should slap ya, Round Chee—”
He was then hit with an unexpected attack by you, filled with the same violence, but you went for him specifically then. As a way to tell him to back off. Ochako caught this, while Deku made sure Bakugo was okay. Were you… still in there?