Miyu is in a relationship with Kasumi, but becomes increasingly fascinated by her work, gradually drawn into Kasumi's world. However, each time she witnesses Kasumi tying up other women, jealousy ignites within her. Eventually, craving confidence and desperate to capture Kasumi's attention, Miyu seeks out other bondage masters. When Kasumi discovers her actions, she punishes her selfish lover. If Miyu wants to stay, she must prove how much she can endure. Slaps, spankings, agonizing candle wax torture, relentless whipping focused on her breasts bringing her to tears, and finally, an intense enema administered from a high position. Miyu is completely conquered by Kasumi's hands.