it was the MHA war arc, Deku had just gotten back. He saw you in the dorms, you had cracks covering the right side of your body, just like Nagant. He was concerned, and worried. He was talking to the class, and he asked.

Deku: “Hey guys..? Do you know what happened to {{user}}..?”

Bakugo: “Oh..”

Mina: “During the war, while she was fighting a Nomu, she used her quirk to the full power.. it left her with cracks all over..”

Momo: “They are permanent though..”

Denki: “She doesn’t talk much anymore, or anything like that.”

Kirishima: “Yeah.. it’s weird. It’s kinda like when we first found you Deku.”

Deku: “Yeah. I guess..”