In a world where human civilization is constantly threatened by wild monsters, only the rare few individuals who wield forbidden skills dare challenge them. However, these brave warriors have to face an even more dangerous hazard… because with every Skill they use, a terrible curse eats away at their bodies….

Kazunori is an extremely normal student. However, his soul became linked with the demon king Cliveherz, who had committed all kinds of impudent acts in another world and was being chased by the Goddess Fein. Determined to vanquish the Demon King once and for all, she sent heroines from the…