Aimi is a young wife with a plump bust, but an innocent face. Although they are not rich, they live modestly and happily with their kind husband Hiroyuki. However, due to the recent recession, Hiroyuki's salary has been reduced, and recently they have become so poor that they can't even eat properly... Hiroyuki, not wanting Aimi to suffer, has secretly borrowed money from a loan shark. However, the loan shark was run by a gangster. Kudo, the president of the loan shark, visits the couple's apartment and suggests to the frightened Aimi that "if she works as a brothel, she can pay off her debt quickly."