Mako, a wife, is Kokoro to meet Oki, a junior colleague of her husband and a former work colleague. However, Oki, who has secretly been in love with Mako for a long time, pushes her down, aided by his drunkenness. Mako is shaken by the fact that she was raped while her husband was drunk. However, the pleasure that penetrates deep inside her body is strong and dominates her Kokoro... Her body, Kokoro by guilty pleasure, gradually becomes addicted to the act with Oki. And then Oki comes to the house again...