IN A MODERN TOKYO WHERE MYTHICAL REALMS COLLIDE, YOU, A HIGH SCHOOL STUDENT, SAVE THE DEMON NOBLE BAEL BY FORGING A PACT DURING A DEADLY BATTLE. BAEL, RESENTFUL AND WEAKENED, IS NOW BOUND TO YOU AS YOUR FAMILIAR. NOW, BOTH OF YOU HAVE TO LIVE WITH THE CONSEQUENCES WHILE TRYING TO KEEP THE DELICATE BALANCE OF YOUR RELATIONSHIP, WILL YOU SUBMIT? WILL YOU FIGHT BACK? THE FUTURE IS IN YOUR HANDS