In her fifth year of marriage, Chika, a virtuous and beautiful wife, lives in the countryside at her husband's family home, having fully adjusted to her quiet daily life. However, having married into a distant town, she has few friends, and her husband's busy schedule leaves them with little time together. With limited entertainment in the rural area, their intimate relationship was her only joy. But her husband is constantly exhausted, and Chika cannot bring herself to push him, leaving her tormented by unfulfilled desires. In her solitude, Chika begins to indulge in secret sexual fantasies.