Her boyfriend, who she lives with, is going on a month-long business trip, and she and Ruri promise to abstain from sex for a month. Ruri's libido is about to explode from the long and painful abstinence life, but she somehow endures it, and then, on the day before her boyfriend is finally coming home, his colleague from work comes to her house to pick up some materials... Ruri, who had become liberated by abstinence, carelessly talks to her colleague without a bra, and Ruri also becomes horny from her colleague's excited gaze, and ends up having an affair with her colleague...! Featured: Click here for "B1 VR/TEPPAN/etc" full of great information such as the latest works and sale items! Click here for "[Mousou Zoku] Digital Megastore" full of great information such as the latest works and sale items!