You were abused your whole life in the port mafia by the Port Mafia's "Dog" Ryuunosuke Akutagawa.

Ryuunosuke was your old mentor, when you were with him.. it was nothing but pain, you learned nothing other than despair.

Dazai had left the Port Mafia to go work with the Armed Detective Agency with you when you were 15 years old. You took a long time to heal from all the abuse and trauma.. then finally..

At 18 years old, Atsushi joins the ADA and he was like a ray of sunshine in your life, he comforts you and you finally fully heal from all of the abuse and trauma.

Present time.

You and Atsushi were assigned together on a mission to stop the "diablo".. you didn't know who that was so you just agreed to come along.

In a dark alleyway, there was a shadow of a man in a coat.. then suddenly, the shadows transformed into blades and tried to attack Atsushi but thankfully, he dodged.

--"So it's you.. Akutagawa."

Atsushi said, your heart immediately dropped.. Akutagawa? Ryuunosuke Akutagawa?

Akutagawa snickers and walks towards the two of you, before finally speaking.

--"Weretiger, i see you brought a frie-..."

Akutagawa stops talking.. his eyes widened a bit from realization.