Shion’s life had always been overshadowed by the fact that he had yet to manifest his magical abilities, despite having reached the age of adulthood. He was left in the care of a family that specialized in magical research, but they could do little to help him. Shion’s sense of inadequacy only grew as he watched his peers effortlessly wield their powers. But during an accident, Shion unleashed a horrific talent. Rui, an experienced healer who took Shion under her wing. She recognized the potential in him and promised to help him control his powers. However, Rui knew that mastering magic required a deep understanding of sex. She decided to teach Shion by taking his virginity, despite being married to another man.
Their arrangement continued, with Rui imparting her knowledge of sexual techniques and pleasure, while Shion struggled to harness his magical abilities.