Who is the snake fairy in the first chapter of the novel? What's the story about?

The snake fairy in the first chapter of the novel was not a specific character but the beginning of the whole story. The snake fairy appeared in the first chapter of the novel as one of the protagonists of the story and a mysterious figure. The story was about a young man named Li Mo who met a mysterious person named Snake Fairy by accident. The snake fairy told him that he was once an evil magician, and in order to escape punishment, he transformed into a snake and lived in the mountains and forests. Li Mo was attracted by the story of the Snake Fairy and decided to follow him to find the secret of the Snake Fairy. During the journey, Li Mo and the Snake Fairy encountered many difficulties and challenges, but they finally found the hiding place of the Snake Fairy. The Snake Fairy told them that he was once an evil magician because he thought he could change everything, including his own fate. His actions led to his own failure and forced him to live in the mountains and forests. Li Mo and the Snake Fairy decided to help him get rid of the evil shadow and start his life again. They embarked on a journey together and experienced many dangers and challenges. At the end of the story, Li Mo finally realized that he had to make his own choice to determine his future.