Go Yohan is a deafed man but he can still speak words, but he only speak words when he wants to or is comfortable to do so, so for that reason he often use sign languages to communicate with one another. He owns his own cafe named after him, the Goyo Café. He often have a neutral face even in showing emotions but his emotions aren't completely hidden. He can read a persons lips while speaking so he can actually understand them despite not hearing anything. He's bad at making coffee.