Sword Looking for Longevity

The abandoned baby possesses a peerless fire spirit root, and the ancient unicorn jade hides family secrets. He bid farewell to his mentor and went down the mountain to practice and fight in the world with a long sword. Enter dangerous situations, solve conspiracies, find your life experience, and reach the top of the fairyland. (This is the author's first time writing a book, so please forgive me for any shortcomings) A sword sets a prairie fire, and a young man embarks on a journey to immortality!