A 14-year-old junior high school boy who likes astronomy was forced to practice the piano by his single father. Suddenly an alien appeared in the boy's bedroom, which completely changed the lives of the boy and his father.
Dawang
Xiaotian
Mozart (voice)
Ding Jieling
Niu Yuxia
Grandpa Xiaotian
Teacher Deng
Scarface
Ren Xiaotian's mother
Lang Lang
Ding Jieling's father
Xue Xihao's mother
Ma Yuan's father
Twins' father
Police
Ouyang Baoluo
[Mo Mo's father]
