Hakka newborn

Are you Hakka? What does it mean to be Hakka? Is it about bloodline? Or speaking the Hakka language?

 In this film, through Xiao Dong, a young man who returned to his hometown of Shuili, and his opportunity to help his family's restaurant transform, he comes into contact with Hakka culture and discovers that he is Hakka. 

Afterwards, Xiao Dong gets involved in local innovation in Shuili, where he faces issues of ethnic identity and local development. Can he overcome these challenges?