After Being Transformed into a Cannon Fodder Tree, All I Want Is to Survive

The plane crashed, and when Lan Xinyan regained consciousness, she found that she had turned into a tree. She originally thought that she would be trapped in a tree for the rest of her life. Until one day, someone came and she realized that this was a world of cultivating immortals. As long as she practiced hard, she could transform into a human form, so... But after finally returning to human form, she learned the bad news, that is, she passed through a book and became a tree that the hero, heroine, and villain all wanted. At the end of the book, the villain set him on fire...