When her sister ran away from marriage, Qiao Yuan was forced to marry her instead. She is Fu Tingzhou's most familiar stranger when they share the same bed; when he is with her at work, she is his most capable right-hand man. This marriage fulfilled the secret love she had hidden for ten years. She warned herself that she should be content, but the greed in her heart grew more and more crazy - what she wanted was not only Mrs. Fu's identity, but also his untouched sincerity. Seeing that she was about to lose control, she decided to pull away, but Fu Tingzhou, who had always been indifferent, was completely panicked and begged her not to leave with red eyes. Until the diary with his name written all over it was opened, this marriage that started as an arrangement finally turned into true love that went in both directions.