Riko lives happily with her husband, a programmer, but she feels frustrated because her nights, which are the most important part of her life, are noticeably less and less. - He was in agony, unable to cool down his flushed body. - One day, Riko's husband's brother came to stay, but Riko didn't really like him. - Despite Riko being a little grumpy, the brothers have a lively conversation after a long time together. - Riko was also talking, but when she suddenly looked down, she noticed that her brother-in-law's crotch was bulging strangely. - I looked back at it over and over again, thinking it would never happen, and before I knew it, I was staring at my brother-in-law's crotch. - Riko runs a massage salon at home, and her husband arranged for his brother-in-law to receive a massage from Riko. - Riko puts her brother-in-law to bed and begins massaging him, but she can't help but become curious about him. - Riko makes her lie on her back and massages her legs carefully, but if she lets her guard down, Riko's hand seems to reach towards her crotch. - Just when I was about to ask him to touch me, my husband called for his brother-in-law and the two of them hurried off. - Riko collapses on the spot and indulges in lewd fantasies while remembering her brother-in-law's pussy...