When angels descended upon Japan, only a select few were chosen by them—
humans granted divine partners and the mysterious Seraph System to fight invading demons.

Ren Kurosawa was one of the chosen, but he never wanted to be.
Rejecting both Heaven’s war and the faith behind it, he invests every point into the most useless stat: MP—a quiet act of rebellion to stay ordinary.

But his defiance awakens a power beyond understanding.
Now hunted by demons and guided by the persistent angel Aira, Ren must fight to protect the life he never wanted to change—
even if it means becoming the very thing he refuses to believe in.