Grandma Is All Good(2019)

Original title: ばあばは、だいじょうぶ

Adapted from a best-selling picture book, the timid Xiao Yi lives with his grandmother, father, and mother, a family of four. One day, Xiao Yi notices that his grandmother has started acting differently, repeatedly asking the same questions over and over again. Until one day, his grandmother runs out of the house without even putting on her shoes and goes missing, leaving Xiao Yi deeply worried.