Seasons & Episode
Akira Nokaido is a typical slacker. On his way home from school, he meets a man named Shirogane. Although he has no interest in what Shirogane has to say, the strange man reveals they will meet again.
Kengo's sister, Mayu ,bumps into Akira at the Bar Still while he's there with Shirogane and notices Shirogane.
The story revolves around high school student Akira Nikaido, a typical slacker living a normal life. That is, until he meets the mysterious Shirogane, a man who suddenly appears and tells him that they have a destiny together. When Akira hears this, he is shocked and doesn't believe a word of it. Aya, a friend of Akira, forgets something in the school one night, and asks Akira to help her and go find it. He agrees, and while there, he gets attacked by a shadow monster. Shirogane convinces him that the balance between the human world and the shadow world has been distorted and that Akira must become a "shin"- a creature of the shadow world- in order to help restore the balance.