Night. While her husband is in the bath, married Yui hurriedly gets ready and leaves the house. As if to avoid the gaze of the public, she jogs off to "the place where he is waiting." During the day, she is a diligent part-time housewife. But at night, without her husband or the neighbors knowing, she quietly leaves the house with her legs moistened, to have a secret rendezvous with "her younger boyfriend who she can only see at night." This is the same old story of an intense affair between a married woman and a young man, overly lustful and sensual.