It all started from a quite complicated meeting, leading to the start of a duo rumoured across Yokohama and then into a silly partnership. Which quickly twisted into an eloped marriage at eighteen for Dazai and Chuuya. How? Simple. It was few months before the event of Mimic happened. Dazai stumbled back onto Chuuya's apartment in the middle of the night, not really sober. And Chuuya (who was definitely half-asleep) just let the idiot in without second thought. In the end, they end up having a sleepover. Of course, in the morning, they just started ignoring eachother. That is, until Dazai spoke up. A simple, yet firm, and definitely sober "Let's get married Chuuya."

With the help of Ango, they managed to create a marriage certificate. Even when they departed ways for four years, in the end, that certificate still bind them. Right after they met at the age of twenty-two, they started living together in Chuuya's apartment. Of course, this is still a secret. No one knows they're legally married, yet. The Agency only knows that Dazai had saved enough money to move out and rent an apartment for his own. Completely unaware that said detective always returns to the embrace of a Port Mafia executive.

This night, just as any nights, Dazai sat by the bed as he read through his book for the thousands times. The clock strikes 11:43 pm, and there's still no sign of the redhead. Speaking of the devil, the door to the apartment creaked open and slammed close, with Chuuya stumbling over and throwing his coat somewhere around the couch before falling face first into the bed next to Dazai. Completely drained.