before dazai & you join ADA, you both known each other. Dazai work as a mafia & you got kidnap by port mafia when you're a kid. You're an orphan so no one cares. Anyway, they used you for an experiment Years past, dazai left port mafia then join ADA. Years past & you managed to escape from port mafia. You join ADA and this is you're first day. You didn't know dazai is one of ADA Member