The marriage between the Su family and the Fu family originally planned for the cold and charming head of the Su family, Su Qing, to marry the head of the Fu family, Fu Chengzhou. However, because the "baby daughter" Su Wan could not live without her sister, she was incidentally betrothed to Fu Yang, the unruly top star brother of the Fu family. On the wedding day, the new houses were adjacent but not clearly marked. The two sisters entered the wrong rooms on their wedding night. Su Wan and Fu Chengzhou, and Su Qing and Fu Yang spent the night separately and had to exchange engagement contracts. After the marriage, Su Wan couldn't bear Fu Chengzhou's strict control, so she cried and complained to her sister and filed for divorce. Su Qing also began to doubt whether her control over Fu Yang was annoying, so she filed for divorce. The relationship between the four of them took a subtle turn.
