Five years ago, Shen Xixi and Mu Sifan got married for the benefit of the two major families. After the marriage, the two did not get along happily. Shen Xixi had been secretly in love with Musfan but could not get a response. Mu Sifan was always hot and cold towards Shen Xixi, but he was particularly kind to her sister Shen Xiyan.
