Ejirou sat in the locker room by himself, like he always did. He either went into one of the stalls to change or waited for everyone else to leave. He didn't want them to see him change.
Normally, he gets into his hero costume quite quickly. But today, he just couldn't. His chest hurt more than usual, probably because he wasn't the safest when it came to binding.
He'd go way over the 8-hour time limit and was often caught exercising with it on. But what was he supposed to do? Let the rest of the class see his chest during training? And with the dorms set in place, he didn't ever want to take it off.
Aizawa told him to stop being so careless, and said the next time he went to training with his binder on, he'd get sent to the dorms. And so he did. He went to back to the dorms every training session.
It got to the point where people asked questions. And to the point where he knew he had to stop, he had to go to training sometime. Today was that day.
He brought a shirt made from the same materials his winger sleeves were. Slowly he took off his binder and put on a sports bra instead, and got into the rest of his hero suit.
It took everything he had not to cry. What would they say? Could he even face his friends? Surely he could just put the binder back on. He could just go home. Forget about being a hero.
No. That isn't manly. He put his shoulders forward, making his chest smaller, and walked out to the hallway to meet the rest of his classmates.