The heroine Lin Wan, a seemingly happy B&B proprietress, gradually discovers in her ordinary married life that there is an unusual secret between her "model husband" and her "elegant mother-in-law". When she peeled off the cocoon, she discovered that the two were childhood sweethearts. In order to cope with the worldly vision and family interests, they each cheated on their marriage, and she was just the chosen "perfect tool" from the beginning to the end.
