One day, one of Misa's stepsons suddenly develops a high fever and is rushed to the hospital. To nurse her feverish son, Misa warms him with her naked body. Captivated by her beauty, the young man gives in to his longing for his alluring stepmother, his adult desires growing stronger. The intimate scene is accidentally witnessed by the other stepson, shifting the atmosphere instantly. The family bond trembles as the line between taboo and affection begins to blur.