The beautiful young wife Yukine lives with her ordinary husband and father-in-law. One day, when her husband invited his boss to dinner, it marked the beginning of their family's collapse. As it turns out, that boss had previously subjected Yukine to sexual training. The man's visit caused a rift between the couple. Meanwhile, the father-in-law developed an obsessive infatuation with Yukine as she slipped into the gap. This twisted situation gradually reactivated the abnormal fetish that had been implanted deep within Yukine's heart…
