the father-in-law who lives with his son and his wife. i've been relying on yuri-san, the "son's wife" who is kind, beautiful, and hardworking, for everything from picking up and dropping off at the hospital. since i found out that my son's wife, who is so devoted, is actually masturbating in secret between chores, my father-in-law has been hurting his heart while heating up that crotch. my son, who seems to be unable to satisfy such a devoted wife in his nighttime life. the father-in-law, who felt sorry for his wife, one day committed a forbidden act...! *the recorded content may vary depending on the distribution method.