Excuse me, where does "mindless and unhappy" come from? Is it a fairy tale?

"Mindless and Unhappy" is a famous domestic cartoon, which was shot in 1962 and produced by Shanghai Animation Film Studio.

The story tells of two children, one is called "brainless" and the other is called "unhappy". "No brains" always make mistakes when they do things carelessly. "Unhappy" is always awkward. If you want him to go east, he will go west. Others advised the two children to get rid of their bad temper, but they didn't agree. In order to help them correct their shortcomings, they temporarily turned them into adults. "No brains" became an engineer and "unhappy" became an actor. "Brainless" designed a 999-storey children's palace building. After the building was built, it was remembered that there was no elevator. As a result, children had to climb the stairs for a month with bedding and dry food in order to watch the drama in this building, which not only harmed others, but also harmed the designer himself, because "Brainless" also attended the opening ceremony of the children's palace.

"Unhappy" performed "Wu Song Beats the Tiger" on the opening day. He played the tiger. When the play came to a critical moment, his old temper came back. The tiger should have been killed by Wu Song, but he was not happy to die. Instead, he beat Wu Song to flee from place to place, and the two of them kept playing under the stage. The "brainless" in the audience was wondering, but "unhappy" hit him, so "brainless" ran in front and "unhappy" chased after, and the two men rolled from upstairs to downstairs, and their backs ached. Through this lesson, the two men are determined to correct their shortcomings. They still change back to childhood.