Ayumi Suzuki was having a hard time. Between her husband Takuya's backhanded compliments and the loud parties he insisted on hosting at their house, she could barely keep her head above water. Takuya seemed to be trying to relive his glory days by inviting over the usual group of old high school friends to sing and drink all night, while Ayumi was stuck cooking and pouring their drinks. Hard as that was, she still stayed devoted to her husband... And then she found out he had been having an affair with a woman from that "usual group" of party friends! As she listens to them having sex and badmouthing her like the insults were their pillow talk, Ayumi finally hits her limit. Now she has a new party to plan: an Affair Expose Party!

https://mechacomic.jp/books/211839