Ten years into her marriage and a mother of one, housewife Misaki lives an ordinary life running a music shop with her husband, striving to maintain a stable family. However, the reason she lied to him about going on a trip with female friends was because her relationship with her husband has begun to crumble. Three years ago, when her husband confessed he had fallen for someone else, Misaki painfully forgave him. Yet the actions she took afterward brought her an unimaginable shock. Will this incident mark a new turning point in her marriage?