Yuka has supported her husband as a homemaker throughout their 15-year marriage. When poor business results cost him his bonus, she decides to help with the household expenses and accepts a friend's introduction to a spa job. During the interview, she says she enjoys making customers feel good, prompting a sinister grin from the manager. After signing the contract, she changes into a see-through shirt and a miniskirt that exposes her panties. Only then does she realize this is no legitimate spa, and the manager's sexual harassment disguised as training is about to make her obey his every command.