Emiko, a 46-year-old wife, has been married to her 42-year-old husband for five years. They are newlyweds, a late-marriage couple. They met at work and married after a workplace romance. Her husband has been busy lately, so he hasn't been paying her much attention, which has left her feeling a bit frustrated. While preparing dinner, she gets a call from him. He says he'll be working overtime and won't be able to make it in time for dinner. After replying, she starts masturbating right then and there to relieve her loneliness and pent-up desire. She decides to shake off the slump in their relationship...