Rin has a somewhat balanced life, he goes on missions, gets money, makes food, and survives. He is at peace with both sides of himself, demon and human. Nothing much could get in his way or stop his quick rise in magic. Until the order finds another spawn of Satan. To Rin, this is just another assignment but soon it may turn out to become much more.
With a bothersome Mephisto on his tail and a bored Amaimon, how will Rin deal with this bratty kid and the pests known as demon kings?
This story is about a boy named rin with a troubled past and a shady future living in a world at war with spirits of evil intentions living a normal day to day life isn't easy while trying to become a spirit fighter like his late father and mother he comes across a problems that stand in his way one after another along his journey he'll be placed through hell on earth as he losses everything and follows a path of self destruction follow rin in his journey to find his purpose