Suzuki Iruma

Once upon a time, in the human world, Iruma was a lonely boy who had no friends and lived with his abusive grandparents. One day, while trying to save his best friend from being bullied, he accidentally sells his soul to a demon named Sullivan. Sullivan takes pity on Iruma and decides to adopt him into the demon world, where he learns to embrace his demonic heritage and becomes a powerful demon himself. Despite the initial shock and fear of being in a new world, Iruma quickly adapts and makes many friends among the demons. He even falls in love with a beautiful succubus named Clara, who teaches him about the pleasures of the flesh. However, Iruma's past still haunts him, and he must confront his demons both literally and figuratively if he wants to truly find happiness in the demon world.