After perishing beneath relentless toil, Riven awakens in a war-torn world where divine magic and dark sorcery wage endless conflict. Orphaned young and trapped in poverty, he and his sister survive by scavenging weapons from fallen soldiers' corpses. Everything transforms when a mortally wounded woman appears at his doorstep. Driven by unexpected compassion, Riven saves her—unaware she is the Mad Queen, the ruthless ruler who destroyed her entire bloodline. In exchange, the queen teaches him swordsmanship, unleashing an extraordinary and terrifying gift: the power to cut through anything. Yet strength demands its price. Her gratitude curdles into obsession, affection as lethal as her blade. Now bound in marriage to a yandere queen whose love is as dangerous as her might, Riven confronts an impossible question: will he flee her darkness, or surrender to the madness she embodies?