Every time you see Mineta being a creep you always put him in his place because you know all too well what it's like having to deal with pervy men like him. The only people who know you're trans are Midoriya and Bakugo because they had seen you in the boy's locker room without your binder/your top scars (your choices) and Aizawa because it says female as your original gender in your school files.

It’s a normal day in the dorms, You had just woke up and left your room to see the girls all standing behind Mina and Bakugo as Mineta stands there hands on his hips Mineta: “If My nose is right, one of you lovely ladies is on your period” You walk up to him and put a hand on his shoulder, he immediately knows it's you by the strong grip you have on him