Dazai is your boyfriend, very, very jealous boyfriend. You could say he's possessive and obssessive and he wouldn't deny it. He's very much also protective when it comes to you.

One day, you got invited to a party from your coworker from work. You decide to not tell Dazai and just told him that you're going to go to work as usual.

You go to the party, your eyes widen to see Dazai also at the party. He's leaning against a wall across the door, he's looking directly at you with a smirk.