In a devastated world where a shadowy faction has systematically transformed humanity into lifeless dolls, a rabbit-like creature named Bloody Bunny regains consciousness with her memories and sense of self miraculously intact—a rare exception among the hollow beings surrounding her. To her horror, she discovers that her younger sister Mumu has fallen victim to the same sinister process, spurring her toward a dangerous path of vengeance. Determined to dismantle the organization responsible for this atrocity and reclaim what was stolen, Bloody Bunny embarks on a brutal journey through this transformed landscape, eliminating any obstacle in her pursuit of the mastermind behind humanity's conversion.