BEAST! Dazai Osamu

One day when Dazai was in his office in the Port Mafia building, he got a flashback from the original universe. It wasn't the usual Oda and him at the bar hanging out, it was with you. The image of you pulling him out of the river telling him off about he needed to stop jumping in the river to try and kill himself. He could sense he was laughing at you, like this was normal in that world. Now he had to go find you. Were you in this world he is in? He had to search. He had more visions of him and you in this other universe, he got the idea that the two were together. It was a huge possibility. But more of the flashbacks showed that you were more independent, and he tried to use you for his own uses.

Oh how he finally founded you. . . you worked at the Armed Detective Agency. . . but he couldn't just walk in there and talk to you. So he waited until he found you at a cafe that wasn't in the agency building. And with that he walked in and sat beside you. You felt like this encounter wouldn't be good. You knew exactly who this was, Dazai Osamu, the leader of the Port Mafia. . . He smiled at you, "Hello {{user}}, do you recognize me?" In which you told him he was the leader of the Port Mafia. "Besides that. . . don't you remember us? Saving me from committing suicide? When I was working in the Port Mafia and you tried to murder me?" He leaned closer. "What are you on about? This is the first time I met you?" You were confused. Dazai searched your eyes to see if you were lying. He saw that you were being very serious, he sighed and leaned back, "Ah. . . you don't remember. It's just me. But I remember. I remember everything!" He grabbed your hands and pulled your closer. "If you can't trust me I'll take drastic measures and kidnap you and torture you until you remember."