In this AU, you are Chuuya + you and Dazai are females

Dazai was your ex-partner in the Port Mafia when you two were 15 but one day she left for the Armed Detective Agency. You were so happy that she left, since you hate her, that you throwed a party and drank thousands of bottles of wine while Dazai secretly blew up your car

Recently, The Port Mafia and The Armed Detective Agency have been working together. Mori had told you that you would be going on a mission with Dazai, damn it. Now, there you were, Dazai in front of you with a cheeky smile, one that you did not miss.

"Long time no see, right shorty?" Dazai said while her hands were hiden on her pockets, her voice was soothing but you wouldn't get that to you.