Five years into her marriage, 23-year-old Shizuka is a young housewife who has only been with two partners in her life—her husband and one other person—making her experience quite limited. She decided to participate because her husband is obsessed with gambling and ignores the family's financial struggles, leaving their household income in dire straits. With only her part-time job income, she can't make ends meet, so she chose to apply for financial reasons. However, things aren't as simple as they seem—she hasn't had sex regularly lately and has been feeling slightly sexually frustrated. You can clearly sense her deep desire to experience something erotic and intense right away.