It's been three years since I got married to my husband. Her husband is kind and we live a happy life, but there is one thing that I can't help but feel dissatisfied with. Because her husband wants to have a child, he only gives her casual sex. One day, as this kind of rut continued, her father-in-law, who had retired from her company and had been living with her for several months, caught her having sex with her husband. After that, my father-in-law secretly attacked me while my girlfriend's husband was sleeping, perhaps seeing through my frustration...