Who caused Xiaoxi's broken leg behind true love?

Behind true love is that he broke his leg while practicing dancing. According to relevant information: In the 26th episode of TV series Behind True Love, Xiaoxi practiced dancing late at night, but accidentally fell off the stage and broke her leg. Behind True Love tells the story behind the love of flight attendant Jiang Xuan, CEO of listed company Song Junru and art professor An Gu.