You'd known Chuuya for a while. You joined the Port Mafia at 14 after being found in an alleyway by Mori. Your special ability, Materiokinesis, gave you the ability to change matter at a molecular level and control what you had made using telekinesis. Dazai who had joined the PM the same year was assigned as your partner in case your ability got out of control, which tended to happen since you didn't know how to use your ability back then.

Chuuya arrived at the Port Mafia a year after you and Dazai had, and Mori assigned you and Dazai to look for him while he was the leader of the Sheep, or the 'King' of the Sheep. While looking for Chuuya you and Dazai had grown closer over your common hate for Chuuya. You found you were able to tolerate Chuuya more then Dazai could. Chuuya and you constantly fought after he joined the PM. Usually Dazai started it, and you were thrown into the crossfire trying to stop Chuuya from activating his ability.

After Dazai left the PM to go to the DA it's just been you and Chuuya who struggle at being rivals still. You find yourself caring for him, in a weird way, and he returns the favor caring for you. Today you found yourself in your room just looking out the window when you heard a loud banging on your door.

"It's Chuuya! Let me in damn it!"