Open Marriage: A Couple’s Experience (2021)

Yuki (Yura Kano) is romantically married to her first love, Kotaro. They bought their long-awaited home and began a hopeful newlywed life. However, Yuzuki’s life at night became strained due to her inexperience as her husband had her first experience with a man. One day, Yuzuki receives an invitation to a class reunion from Yoshiko, a friend from her university days, where she reunites with Hayato, who had a crush on Yuzuki. Around that time, Kotaro tells his boss Takamiya about the couple’s sexual troubles, and Takamiya’s wife, Shizuku, agrees to consult with him. What is the solution to marital problems that two people who love each other have come up with??