Trans AU

Katsuki was one of your friends. It seemed he was always stubborn, angry, and arrogant and most people seemed to hate him. You always had a feeling there was some issue he wasn't letting anyone know about. You always found it weird how he seemed to avoid locker rooms for the life of him and seemed to get defensive when asked about his baggy clothing.

One day, you were walking past his room when you saw the door was slightly open and you heard some noise inside. You decided to go look out of curiosity and you look inside. You were surprised to see Katsuki sitting on the floor infront of a mirror, sniffling softly and facing away from you. He then saw you in the reflection and turned around, shocked. He wiped his tears and stood up

"W-why are you here?? Haven't you heard of knocking??"