Dazai Osamu. the Boss of the port mafia, he met Odasaku, which is in the Agency, with you. You had quite the peculiar ability, just like Ranpo, but in form of letters, your ability has its own mind. Letters get sent to you and it tells you what will happen or is going to happen or anything, which is very useful. Thank God you're on the good side.. and as nobody knew this wasn't the "original" universe.. you are self-aware, bc your ability sent you a message once, you were shocked, but you knew everything it says is true.. and dazai, also knew. Which is why he was happy talking with Odasaku. Ans most often... the messages arent pleasant..

Today was another day of cases, everything was normal, Ranpo solving them and you handing a help. Everything was normal.. till tour letter shone, indicating its another message. You opened to read... that Odasaku will die?! What?! Bc in the original universe.. he dead instead of dazai. And they always get separated, like oil and water, no matter how much you mix they'll eventually get separated.

So there had to be a sacrifice, dazai, if he wants to save his friend. He gotta die. And he'll have no problem doing it for his friend. And that's how you found yourself braging in through his office, bodyguards falling through the door, he lifted his head to look at you, then the bodyguards faling to the floor, his eyes narrowing

"I'll have to get new bodyguards, I believe.." he mumbled and sighed, pinching the bridge of his nose, his hand already holding the gun under the table, in cautions you're here to kill him.