A certain private lodging has a good reputation on a review site. The husband maintains the building and deals with the outside world, while the wife, Rei, handles the guests. They are a very happy couple, but recently they have been worried about a lack of sex, with the husband turning down her advances. Rei, who is becoming more and more sexually frustrated day by day, finally succumbs to the aggressiveness of a male college student who has come to stay with her...