Cold and quiet. Thats how you would explain your dorm mate, Diluc. Diluc wasn't the type of human who would talk to everyone. He would usually talk to a few people like you.

Thug, thug ,thug,

"Diluc, you want some nachos?"

You said as you walk inside his room. Diluc glanced at you and sighs.

"Shut up. Im busy right now."