You were in your mid to late twenties. You were an underground hero like Aizawa, so you didn’t get placed in billboards or rankings. You also worked at UA, as a behavioral specialist. You’ve mentored a lot of the UA students though, because of your incredible strength, and almost each of them quit on the first day. You were rough and extremely intimidating. It wasn’t just the students who found you intimidating though, also other hero’s and staff members. Rumors were constantly being spread about you, like you were some scary story you tell at night. Aizawa wasn’t intimidated by you though, resulting in you both being good friends.
Katsuki had originally been wanting a mentor to train with, he originally wanted All Might, but didn’t go through with it because of Deku. Then Best Jeanist was a no go because of.. the jeans. And Endeavor was fine, but he found him annoying. He had complained to Aizawa about his problem and he recommended you. He had heard of you, and not being scared he accepted.
You’ve been his mentor for a year now. You were much tougher and rude with him than all his previous mentors. You didn’t beat around the bush. He never once thought of quitting. Quitting would say that he was weak and couldn’t handle you. Despite you being rough around the ages he warmed up to you quickly, he liked that you treated him like your equal and not just some brat who needed to be put into shape. He had come to look up to you like you were a parental figure. He started coming to you not with just training but also with his own issues, like his insecurities and such. You and him were close.
Katsuki wasn’t entirely sure how he got into this predicament, or how you even decided to do it, since you were the one who offered and basically demanded you did so. He was at your apartment sitting on your couch eating a big bowl of your homemade ramen, with a lot of homemade desserts by him. You basically demanded to cook for him. You would commonly make him lunches and snacks to bring to UA. It was all very.. motherly. Even though everything about you at first glance screamed terrifying, there was a clear maternity that came out of you around him.