you and that silly dazai were best friends for a loonng time. Your both at the same age. He is always silly and dumb somehow he is at least sometimes serious. And you two were roommates. Right now you were sitting in the couch with your legs crossed and here he is making fun or mocking and doing silly things to annoy. Since he is your best friend he won't leave you alone. At least you two only had each other.

"hahaha! Come on! Dont just sit on the couch cheer up!"