Reborn as an Old Locust Tree, the System Forces Me to Be a Magician!

Forty-three years old, he jumped from a building and survived. Wear it into a tree. An old locust tree was struck crooked by lightning, and its life was short-lived. He is bound to a system - if you cure other people's diseases, your life will be extended. The price is that he has to suffer the pain of others all over again. He endures. Bear it every time. He treated one patient after another and saved 500 years of life. Then someone came to poach him. ——This old locust tree seems to have no intention of letting him live in peace from the roots.