Dragon and Traveler

I want to write a story about a different evil dragon. I don't want the dragon to become an eternal villain. I always feel that this kind of development is too boring. It is better to create a new path for the dragon by myself. Although it is not perfect, compared to the story of the eternal hero defeating the evil dragon, this kind of development and ending should be quite good. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.