Just one year into marriage... Hitomi, a devoted wife, wakes up early every morning to prepare her husband for work and manage the household chores. While cleaning the garden one day, she suddenly hears footsteps approaching. Turning around, she finds herself face to face with her husband's younger brother—her brother-in-law, Takeshi. "Hey, sis-in-law, long time no see. You're still one hot woman," he says bluntly, staring at her without restraint. Hitomi had heard that Takeshi despised his older brother, but now that same hatred begins to stir a deep sense of dread within her—one that slowly, inevitably, turns into reality...