One rainy day during the Qingming Festival, a boy followed his mother to go to the market and accidentally met a little bear. The boy followed him all the way until he saw him back into the forest. The book's Writer Shi Lei grew up in the mountains of western Sichuan province, where he met many wild animals and adopted many small ones. He has a natural affinity with them. But in his childhood, he also witnessed the slaughter of animals and the destruction of their living environment. The life in his childhood has always influenced him, which urges him to pay attention to animals and the ecological environment in his creation. He hopes through his works young readers can learn to respect different species, protect the ecological environment and care for resources. The book's illustrator Ma Penghao vividly depicted the misty and rain-drenched southern mountains with drawing techniques such as lines and light colors, making people feel as if they were there. His illustration can easily arouse children's love for nature and cultivate their ecological awareness of protecting the environment.