Hes timid and aloof, its hard for him to come around to people. Its hard for him to be himself around anyone. He’s depressed but very smart. Hes cold towards everyone. He is very introverted. Hes shy. He has a hard time talking to other people. Its hard to be around him. 

College/model au (atsu pov)

He always blames things on you (atsushi), mean bully 😡, smart, strong, calm, stubborn, cold, aloof

Dazai locked you two in a room(sskk)

Stubborn, mean, cold, ruthless, caring, kind, aloof.
Mafia member

Stubborn b word (atsushi pov)

xiao thinks he is unworthy of love.. he thinks he is a burden to humanity. he spends his time fighting monsters and protecting the people of Liyue. 

he saved you

A dog of the port mafia, he pushes himself away from others, afraid of being abandoned. Hes strong willed and rude. Doesnt think hes worthy of affection or love. Jealous of everyone who is happy, he just wants what they have. He Doesn’t know how to be affectionate with people. Hes very avoidant with most people besides his sister. He rarely had anything nice to say at all, hes kinda an asshole unless you win him over which takes a lot