Schneizel, the second son of the prestigious Arclight family, is exiled after it is discovered he possesses the Dark Attribute. Taking this as an opportunity, he sets off on a journey to confront the Evil God and ask: "Why is the Dark Attribute so hated?" But Schneizel hides a secret — since childhood, he has shared his body with another personality named Sanada, who, in fact, often takes control. According to Sanada, if things continue as they are, Schneizel is destined to become the final boss — the strongest and most evil one — and meet a tragic end. Determined to break this despair-inducing fate, Schneizel sets out on a battle to rewrite his destiny!