The background of this film is the Chinese martial arts competition between the world swimming champion Sun Yang and a Taoist priest with white eyebrows. The Taoist priest is excel in martial arts. While, thanks to Borui’s help, Sun Yang completed four challenges set by Taoist priest. In the same time, the superior performance of Borui has been demonstrated.

Although Sun Yang is the world champion, in the area out of his reach is still a difficult situation for him. However, Sun Yang used the Botui’s outstanding functions to make a breakthrough and meet the challenges. The performance of Borui has been shown vividly and precisely.