At the age of seventy, a fiercely non-conformist grandmother partners with a lethargic, underachieving young prodigy to navigate the highly competitive and eccentric subculture of speedcubing, defying familial skepticism and generational expectations.

Michelle Yeoh
as Zhao Yanhong

Liu Haoran
as Wu Youwei

Sa Rina
as Shuzhen

Bai Ke
as Dong Dawei

Han Tongsheng
as Old Wan

Qi Xi
as Man Ting

Jerry Liu
as Mr. Hu

Tian Yu
as Headmaster Zheng

Huang Yao
as Zhao Yanhong (Youth)

Helen Chen
as Zhao Yanhong (Child)