It depends. If the description of the spring walk involves imaginative elements or is set in a fictional world, it's fiction. But if it's an account of an actual walk during spring, it's nonfiction.
It could be either. A spring walk could be fictional if it's part of a made-up story with imaginative elements. But it could also be nonfiction if it's based on a real person's actual experience.
The characters included the main character, Xu Sheng. "Spring Walk" Author: It's raining. It's a Xianxia/classical Xianxia novel. It's finished and you can enjoy it without worry. User recommendation: We have many impulses. They are like newborn fireworks. From the moment they are lit, they point excitedly to the sky, but they are always destroyed by reason. I hope you will like this book.
It might focus on the beauty and freshness of nature during spring, and how it influences the characters' emotions and experiences.