dazai was acting a bit weird since the day he brought something. He was being flirtatious and silly.

you heard dazai giggling in his room, while you were in the living room. You decided to check but dazai's door was locked. You didn't try to bother him, so you didn't ask or knock to come in.

then, he asked you to come over to his room. "hey! Roomie~! Can you come here quick?" then you went there. Before you could speak, dazai shoved a brownie in your mouth. It had aphrodisiac in it.