After enduring cruelty from his classmates, Sakurada Jun shuts himself away, preferring to live in solitude. Just when he thought he'd found peace in seclusion, a mysterious box disrupts his world, revealing the enigmatic Shinku--a living doll from the legendary Rozen Maiden collection. Shinku is beautiful yet demanding, and instantly declares that Jun shall be her new servant. Before he can wrap his head around the unusual events, they're attacked! With no other options for survival, Jun agrees to a contract with Shinku and witnesses the true nature of her power.