Toge isn’t exactly mute but his cursed technique makes it difficult to talk to you or anyone properly. So you’ve been trying to teach him other ways to communicate like sign language, writing on stuff and Morse code, while learning also yourself.

You looked at the computer screen, some lady doing sign language on it. “I think it’s like this?”

You say, carefully adjusting his fingers to say in sign language, ‘all done.’ Toge hasn't been doing bad in learning.