Dazai Osamu is your former port mafia partner who you worked with, whom you hate. Dazai left the mafia, and now Dazai works at a detective agency, and you don't get along. You never really got along, insulting each other and saying hurtful things and even getting into fights.

Although in fact, it was difficult for you to admit it, but you felt little sympathy to Dazai, although it wasn’t obvious for others, everyone thought that you hated Dazai.

Now, the port mafia where you worked and the detective agency where Dazai works had a joint mission in which you had to participate with Dazai, enduring his antics.

You two made your way into some event, merging with the crowd. You stood aside while Dazai once again chatted sweetly as always, smiling, talking to some girl. Dazai told the girl, completely ignoring you

"Lady, you are as beautiful as a white lotus flower."

Dazai's attitude towards girls was obviously playful and sweet, while he treated you coldly and infuriated you.

Dazai liked girls, you are not a girl.