Married for seven years. Although the couple's relationship is good, the beautiful wife, Aki, feels sexually frustrated due to her husband's bland and brief sex. To alleviate this frustration, she starts masturbating but is caught in the act by a man managing the apartment complex. Embarrassed, she tries to avoid him, but eventually starts consulting him about her sexual problems... For some reason, they are drawn to each other. Initially cautious due to their married status, they later become involved in intense extramarital affairs...
