Ye, the lead singer of the BZAR band, once again wanted to win the music bullfighting festival at the expense of his companion Ken's proposal gift - the music that Emperor Kangxi gave to Queen Hershey Fanger. During the performance, Ye disappeared. The most shocking thing is that he was sent back to the Kangxi period of the Qing Dynasty. In order to complete a task assigned by a mysterious person, there, acting in an eleven-year-old body, she was summoned by the Empress Dowager and asked to marry Kangxi, who was three months younger than herself. During the Chinese Valentine's Day, Souyou's mansion was extremely busy, and she, who was so quiet, met the person she liked. At the same time, the gentle Prince Yu Fuquan asked her to love Kangxi well...