>On her way home from a drinking party, Yuki feels the need to urinate and urinates into a nearby plastic bottle.
>After releasing a lot into the bottle, Yuki goes home. The next day, she sees off her husband who is leaving for a business trip. At that time, her next door neighbor Hiroki asks her to get rid of a cockroach, so she goes to Hiroki's room.
>Hiroki says he's had enough of getting rid of cockroaches. Hiroki shows Yuki a video of him urinating into a plastic bottle outside the other day, and threatens to spread the video and his address on the internet, forcing her to do as he says if she doesn't want that to happen.
>Yuki decides to do as he says for the time being as a temporary measure, and then reports him to the police later. However, the way Hiroki plays with Yuki is beyond her imagination.
>Yuki turns into Hiroki's sex slave.

Base +20, Kishagi +8