My husband is her lover

This work is based on the comics of Atsuko Aizawa and Luo Gin Tsukiki. It is a love mystery novel that describes revenge and new love that started out of double incest. Sasano Kaori and Takuya are a very close couple, but they have one dissatisfaction with Kaori. That is, although she is undergoing infertility treatment, she has been in a state of "boycotting" nightlife. One day, Kaori learned about the existence of Takuya's secret person from a conversation with her friend Yuki, as well as many submissions that exuded an unholy atmosphere. Kaori targets her unfaithful partner, Mutsumi Mishima. He went to Takuya's husband Kyousuke and asked him to help Takuya sever ties with Mutsumi. So Kyousuke agreed on the condition of "having sex with Kaori". Later, while Kaori was following Takuya and Mutsumi, she had a relationship with Kyousuke and developed an admiration for him who had similar values.