Arihana, a married woman who lives an ordinary life, lives with her husband's younger brother, Masato, who has moved to Tokyo to become a stage actor. Her husband came home late, and Arika often spent dinner time with Masato. One day, at dinner, Aribana heard Masato's story, "I'm going to have a kissing scene at the audition next time, but I'm worried because I don't have any experience," and because she had drunk too much, she thoughtlessly offered a practice table. And the moment my lips touched, I was struck by a numbing sense of immorality.