Longevity Starts from a Little Fox

A 21-year-old aspiring young man traveled through time and woke up to find that he had acquired a system. The only skill in the system was immortality. Ren Beixin vowed to measure this fantasy land with his feet. He could fly. What's so great about it? I, Ren Bei, can turn into a little fox and be so cute to you. What? ! ! Is there any natural reason for the system to only bring one immortal and still have to do tasks every year? "System prompt: Please ask the host to cut down two hundred three-meter-thick trees. The task time limit is two years." "Do you accept it?" Ren Bei looked at his little hands. This deceptive system actually allowed an eight-year-old child to chop down two hundred three-meter-thick trees? ! ! Is there any justice? ! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.