The elder sister disappeared, leaving behind a son to be raised by her younger sister Meng Chuxia (played by Li Fei'er). Because of this "drag", the gentle and kind Meng Chuxia has never had a chance to have a romantic love. Shen An (played by Park Hae-jin) is the successor of Shen's Group. His painful past emotional experience made him decide to find the perfect marriage partner through blind dates, and thus met Chuxia's friend He Ruonan (played by Qu Jingjing). Unexpectedly, He Ruonan died in a car accident. Before her death, she entrusted her friend Chuxia to Shen An. However, the strong and independent Chuxia was unwilling to accept Shen An's charity. At the same time, Shen An's mother also had prejudices against Chuxia. In order to fight against his strong mother, Shen An decided to marry Chuxia, but at this juncture, Chuxia discovered that Shen An's former lover was her sister. At this time, the sister who had been missing for ten years suddenly appeared, and a complicated and entangled love affair began.