It was unknown how many years had already passed since the true body of the tree demon, Min Luo, was trapped within the Dark Sparrow's Grave.
He was just a Void Fragmentation Realm demon cultivator and his lifespan should already be over a long time ago.
Fortunately, Treant Min Luo created a heaven-defying method himself to turn his original body into a tree. He had completely transformed into a tree and had lost the chance to return to his human form again.
He extracted his demon soul and produced countless clones to move around the Dark Sparrow's Grave with them.
Because his original body had degenerated into a tree, his abilities were greatly weakened but he gained an everlasting lifespan in exchange. He had gone through years of suffering and improved himself through his growth.