GMA-075 Bondage Training Wife: Repeated sexual acts in the name of training at a long-established hot spring inn. Sae Fujiki, a lewd wife who became a slave to her father-in-law's merciless rope training.

Following the sudden death of her mother-in-law, Sae has to take over her husband's family's hot spring inn. When she meets her father-in-law for the first time in a long time, she finds that he has become emotionally unstable since his wife died. The couple is confused, but they start living together and learn how to do their jobs. One day, while Sae is cleaning, her father-in-law hugs her and says, "I'm lonely... Sae-san." She resists, saying, "Father-in-law, please stop," but she is aroused by his intense caresses and eventually allows him to penetrate her...