Wakabayashi Reiya

A member of the royal white wings blood line but born to be a black wings instead. After being confined for 100 years, he escaped and bring "justice" for the black wings by taking revenge on the white wings. Later, he came to the human world to do experiments of modifying black wings on human body in order to find solution to prevent "berserk" which known to be an inevitable death for the black wings, making them insane, getting out of control and attacking everyone.