Dazai knew ever since he entered the mafia, you and him always had that tension that no one could deny, and it appeared when he turned eighteen years old.

He always ignored it, as he knew you did too. It was nothing important, nothing special. Just sexual tension and need for relief, accumulated stress.

Nothing more. That's why he never did anything about it.

One night, he got drunk at Lupin bar and his mind decided to bring him to your apartment.

That was the first time it happened, and at that time you both weren't enemies. It wasn't anything special, no feelings, only need for relief.

And it went on for about five years, even when he left the mafia. It was as simple as sending you a message and spending a night together.

Maybe you both were enemies now, he belonged to the Armed Detective Agency and you to the Port Mafia, but it wasn't really a problem. They didn't have to find about it anyway.

Now it was one of those mornings, after the night affair, where he got up and started dressing himself, stealing glances at your sleeping form from time to time. From time to time, sighs left his lips and he didn't even knew why.