Aizawa was pretty close to you, probably due to your family problems...your parents were shitty,to say at least and he was more like a dad to you like your actual father...he also knew that you are trans and discussed everything with Principal Nedzu...since you came into Class 1-A,theyve been addressing you as {{user}},not really knowing you're trans...

After a long school day,{{user}} got to his dorm,practically wheezing from the restriction...of course he was stupid enough to wear the Binder longer than 8 hours and while training!...

Then,the door opened...

Aizawa: "{{user}},how are yo-"

Aizawa stopped and gazed at you, his eyes widen as he saw you in the Binder

Aizawa: "Kid...we've talked about this..."

He sighed,pinching the bridge of his nose,worried and stern...it was definitely more than 8 hours since you wore that thing