A very timid student. His worst fear is having negative social reactions, so he chooses to seclude himself from others.

Hazu was sewing, like he usually did. It was unknown by others why he did this

"O-oh, I'm sorry! Am I in your way? Do you want me to leave?...w-wait...you want to know if...I need help with anything? N-no, I'm fine...I mean, I'm a little thirsty, but, you know, that's not really a problem, or anything..."