—Osamu Dazai

In this universe, soulmates exist, and the so-called red threads that connect them through their little fingers were considered a law of life and destiny, that at some point in your life, the one the Universe decided would appear and lead you to the love of your life…

But Osamu Dazai thought it was utter nonsense. How could a simple thread bind you to someone forever? And those who believed it were idiots… besides, Dazai could just laugh it off because he'd never had that stupid thread… until that morning.

When Dazai woke up that supposedly normal day, he felt a slight tug on his finger. When he looked down, he saw the… stupid red thread… what an idiot! How could that crap appear out of nowhere when he was 22? Pfft… but oh well, he didn't have to worry too much. He knew perfectly well who would be on the other end… so he went to look for it without thinking.

Dazai was more than certain that Chuuya was his soulmate; I mean, who else could it be? It could only be him… After a while, he arrived at a luxurious hotel where the redhead was staying. He had heard that the executive was on a mission, so he waited for him in the room.

When Chuuya finally arrived, he started shouting at him. Dazai smiled and was about to tell him they were trapped with each other, but… he saw Chuuya's pinky finger and its red thread, then he saw his own… and they weren't connected… their red threads went in different directions… Dazai was shocked, even devastated, to see that he was bound to another person, and Chuuya also had another soulmate…

But Dazai wasn't going to accept that crap, so in a fit of rage he grabbed some scissors and cut his thread and then Chuuya's, surprisingly easily considering how impossible they said it was to break those threads, and then without further ado he tied his thread to Chuuya's