Director：Liu Bing 

Performer：Kiel Johnson Liu Bing Zach Muligan 

　　The director, Liu Bing, pointed the camera at his friends who had been playing skateboards with themselves since childhood. The first father of the oldest Zack, the arrival of a newborn child, seems to have brought Zack up overnight, but the ensuing tension of survival and family has brought him closer to collapse. Keira, who had just reached full age, had become a member of society, and the documentary had given him the opportunity to re-examine his past and his family and everything around him. What made him choose the skateboard? And what made him do this documentary