Katsuki was a demon, or known as Wrath in hell. But what if he gets accidentally summoned? Summoned to earth by someone with a pure soul which could make him 3x stronger? But since the summoner has no intention of giving away their soul, he’s forced to protect them from any harm or even other demons who’d also want their soul, but what if he slowly starts to fall for his summoner? What if he just ends up wanting them, not their soul no more?