Arika, 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, so Arika often spent dinner time with Masato. - One day at dinner, Arika hears Masato say, ``There's going to be a kissing scene in the audition, but I have no experience with it, so I'm worried.'' Since she had been drinking too much, Arika casually offers to practice. - Ta. - And the moment our lips touched, I was attacked by a numbing sense of immorality...