I broke up with my ex-husband due to so-called personality differences. - Ten years have passed since then, and Shiori has remarried and moved into an apartment. - Her new partner is very nervous and even has a set number of nightly acts. - Shiori was getting a little tired of living like that. - One day, she happens to meet her ex-husband again. - It turned out that they lived in the same apartment building. - Feeling nostalgic, her ex-husband invites Shiori into his house and talks about things that happened after they broke up. - Her ex-husband listens to Shiori's story, but ends up hugging her and kissing her. - Shiori panicked and refused, but she seemed unable to bear her ex-husband's caress. - I was about to lose my patience, but the phone rang and I left the room. - That night, Shihori masturbates while remembering her ex-husband. - The next day, her ex-husband shows up just as her new partner goes to work, and as if her suppressed desires are about to explode, they have sex. - Shiori thinks that this kind of relationship is no good, but she can't forget her ex-husband's actions and knocks on his door...