Evolution Begins With a Big Tree is a supernatural manhua online in English featuring spirit energy. After drowning, a man reincarnates as a massive willow tree inside a canyon. This sentient plant possesses the unique power of infinite evolution to survive. Spirit energy returns to the world, forcing all living things to mutate. Hostile mutated beasts and rival creatures constantly threaten his new sedentary life. A hidden conspiracy regarding the source of this spiritual revival remains unsolved. The protagonist is now consuming nearby spirits to strengthen his wooden body.