One day a man calls an outcall escort service, only for his junior coworker Reo, a caregiver, to arrive. Normally quiet and reserved, she begs him not to tell their employer because she needs the money. Seeing this unexpectedly lewd side of her makes his desire impossible to contain. He threatens her with losing her job and orders her to undress, revealing a voluptuous body with enormous breasts he never knew she had. He immediately declares that she will be his slave from that day forward.