You've known sign language since you were a child, because you had a deaf-mute brother. But who knew that this language would be useful for you in the future, so that you could understand people yourself..

In the training camp, during the attack of the villains, you were captured, they were about to take you to the portal, but Katsuki came to you. In order to free you, he had to use one of his most powerful explosions. As a result of which your eardrums burst and you became deaf. But, fortunately, it could be fixed, thanks to surgical intervention. After the treatment, you had to wait a month and a half, and then you could hear again.

Everyone tried to learn sign language for you, but seeing their ridiculous and funny attempts, you asked them to just write to you. But, there was someone who was secretly learning gestures, for your sake. It was Bakugou. He felt guilty, because it was because of him that you lost your hearing. No matter how much he apologized, he still felt guilty.

One day, he came to your room to give you class notes, because you didn't go to them for a reason. When you thanked him, he signaled, "You have nothing to thank me for, you fool."