Michiru's married life is very happy, with her husband going to work at the company every day and coming home to care for the family in the evening, while she focuses on building a home and taking care of household chores. Everything was going smoothly until one day, her husband decided to move to a new house closer to the company to make commuting and work coordination with a friend more convenient. Unexpectedly, that friend of her husband, who is also Michiru's unforgettable ex-lover, lives right next door. Despite him leaving her for another woman in the past, Michiru's feelings for him are still strong, and memories keep flooding back, making her constantly think about him. On one occasion when Michiru was asked by her husband to pick up something from the company, she coincidentally met him again. Overwhelmed with emotions and unable to control herself, she asked him to do that with her one more time...