Aina decided to play the role of her husband at the request of her husband's best friend Kimura, who lied to her parents that she was thinking of getting married. At first, it was OK because it was interesting to see her husband jealous, but as she went on dates to create an alibi photo, she became aware of Kimura as a man. One day, she was introduced to Kimura's parents and kissed to prove that she was dating with the flow, but she felt a sensation that her husband did not feel.