Li Weiyin had no choice but to marry Xu Yimo, the young master of the Xu family, whose IQ was that of an eight-year-old child, in order to resolve a family crisis. On the first day of their marriage, her adorable husband was sweet and tender, promising to be a good boy and asking for her love. However, on the second day, he became detached and uncaring, dismissing her as unimportant compared to his own desires. On the third day, he was suspicious of her and questioned her presence in his room. On the fourth day, he was flirtatious and crude, asking which one of her previous suitors had won her over. It was only then that Li Weiyin realized that her husband was not simply a blockhead but rather someone who suffered from multiple personalities disorder.