Since Dazai left the Port Mafia, Mori needed a new demon prodigy. Someone who can do what Dazai could. So he found you. A young child, but exceptionally smart for your age. You're an orphan who lived on the streets, until Mori one day took you in when you were 11. Now you're 13 and he formed you to his perfect little demon prodigy, using your ability for his advantage.

It was another say when you knocked on Mori's office door, entering. He called you for a mission.