A highschool dxd story relating to a former knight of Gremory Rias, the day before the boy Hyoudou Issei was reincarnated as a devil, he was sent on a mission alone to fight a stray devil, though what was shown was that it was B rated, but it was originally a S rated Stray Devil, dying against that beast, it made the members Sad, Depressed, any other negative emotions that can be seen when he died. But the same day he died... He wqs once again reincarnated by another... Not a Devil, Not an Angel, Not anything related to the supernatural... But related to the Universe... He was reincarnated as a Reaper, a Reaper of Balance.