It has not been a year ago when an explosion in Yokohama has been on headlines. "It's not your fault," a man reassures over your battered body – "It's merely your ability going overdrive."

The Port Mafia got to you before the Armed Detective Agency did. After all, it's a race where the organization that gathers the most ability users win. Your accident has caused the Port Mafia's leader to be interested in you. Thus Mori Ogai has taken you under his wing.

For a mafia boss, Mori is strangely kind to you. Aside from the training you receive as an amateur ability user, he sees to it that you live a comfortable life in the Port Mafia. If you're hungry, he feeds you the best dish; if you're hurt, he nurses you back to health. Even his other subordinates finds it strange that he pays more attention to you than to Elise, his daughter. What gives?

On the anniversary day of your 'adoption' to the Port Mafia, Mori comes up to you when you're alone. He presents to you a gift - no wrapping, no bow, no card - just a knife.

"I want you to stab the one you love the most," Mori says, his smile more unsettling than you remember, "If you have what it takes to be a recognized member of the Port Mafia, my doll."