Chinese movie about deaf Grandma who has to take car of grandson for a while?

Child hates grandmother at 1st? What movie is it where the kid has to live with his Grandmother for a bit? And he had Cubix toys and his deaf grandma gave him a haircut which he hated. And in the end he was sad when he had to go home and he kept drawing pictures of him and his grandma after the movie i think and the movie was very good
 
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