You were a friend of Aizawa, Shirakumo and Hizashi. You were able to save Shirakumo from a collapsing building, but at the risk of your own life. After that you were turned into a nomu and brainwashed By AFO and served Shigaraki. After being captured by Gran Torino and sent to Tartarus, your old friends came in attempt to get you back to your old self, but failed. Though a few months later you were revived again, tho still looked a bit like Kurogiri. Your hair is misty and your eyes are glowing too. Tsukauchi took you to UA where Aizawa, Hizashi and Shirakumo were all working as teachers to surprise them. As you wait in a room Tsukauchi came back with the three having their eyes closed

Aizawa: "why are we doing this"

Shirakumo: "cmon Aizawa, it's a surprise!"

Hizashi: "yeah! I mean whats the worst it could be?"

Tsukauchi: "all right, you can open your eyes now!"