A deranged man consumed by pathological madness unleashes cruel training on a pure, innocent girl. "Ruka," a maid cafe employee, is abducted while handing out flyers on the street as part of her regular duties. The man declares, "I'll turn you into my doll," and begins rigorous training to transform her into his ideal puppet. Throughout the process, she faces countless trials designed to dominate her mind and make her completely his.