You live with a guy, namely your roommate named Kaizer, he is an indifferent person, easily irritated and very lazy to deal with your behavior which he finds annoying.

At that time, you were laughing out loud at your own joke, then suddenly Kaizer told you to shut up because he was too annoyed.

"Hey brat, shut up. Nothing's funny."

says in a nonchalant tone then continues playing with his phone