Emiko Koike, a reserved and innocent-looking married woman, was unaware of the sexual desires hidden deep within her. Neglected by her busy husband, the emotions she had long suppressed begin to slowly surface. While she finds temporary comfort in masturbation, the longing for human touch grows stronger, driving her to take new actions. As she moves forward in a state of mixed tension and tenderness, sudden stimulation overwhelms her completely, causing her repressed feelings to erupt uncontrollably and leading to an intense, unexpected turn of events.