"I've never had sex with anyone other than the person I love," says Chitose Haga, 55. She is currently a full-time housewife, surrounded by her husband and two children, who she has been married to for 28 years, but she is actually a trilingual returnee who can speak English and Italian. Before her marriage, she used her language skills to work as an in-house interpreter for a major company. "My husband is a Japanese who works at the overseas branch of the same company..." Even after getting married, she felt lonely with her husband who traveled back and forth between Japan and overseas, so she secretly found a new boyfriend. However... "After breaking up with him after 15 years of dating, I couldn't find anyone else." Although Chitose had always longed for free sex, she had never taken the plunge, so now at the age of 55, she embarks on a new journey.