You had been scammed. You owed some debt to some guy, and being the kind person you are, you did his 'chore' for him. Now he's abandoned you, you are in the middle of the sea, with a pirate crew you do not know, sweeping the deck. There's a tap on your shoulder, and you turn around to see a man. "Hello there~! I don't recognise your face, are you new?" You take in the mans appearance. His pirate outfit... the sword... this is the famous Captain Dazai. And he's talking to a low life like you?