To accompany her husband who started playing golf, Kana also begins to play. However, her life changes after encountering her husband's subordinate, Uchimura. One day, she ends up having a physical relationship with him. To suppress her guilt towards her husband, Kana tells herself it was 'just a one-time mistake' and tries to keep her distance from Uchimura. But his intense and rough caresses gradually draw her in. As time passes, their hidden relationship begins to seep into their daily lives…
