During his Sacred Enthronement Ceremony, Aiden was betrayed by his eight most trusted protectors and died. Reborn, he activates the Buddha-Demon Samsara System, embarking on revenge by destroying his betrayers' power. He discovers his rebirth and betrayal were part of a possession scheme by the ancient demon god, Netheros. Aiden breaks free, devours the demon god's essence to shatter the old order, becoming a supreme powerhouse and rewriting Sanctum's fate.