What is the story of kitten fishing?

Cat Fishing Story: Miaomiao and Mimi are brother and sister, one is hardworking and obedient, the other is playful and lazy. Mother and son came to the river to fish, but both mother and Miaomiao got something. Mimi didn't catch any fish. Mom said, how can you catch fish when you catch dragonflies and butterflies? Mimi is embarrassed. She decided to fish seriously and finally caught a big fish.

Cat Fishing is an animated film released by Shanghai Animation Film Studio on 1952. The film is directed by Yang and voiced by Shu Xiuwen. The film tells the story of Mimi, a half-hearted kitten, who learned to be serious in order to succeed in fishing.