Agent Kazumi received an order to eliminate one of the heads of the evil organization, but suddenly she got caught in to trap. After she awoke, she finds herself immobilized, and weird wires were connected to her head, before she even realized what's happening an odd device was connected to her head and an irreversible process started. It was a brainwashing device that completely erased her personality and installed a new one. Later her body was also remodeled. From now on she serves as a sex-slave bunny girl in the underground casino and fulfills her new master's desires.