In Agreement with the Fox

[Two male protagonists, supernatural + fantasy] Yan Yanqing's object fell from the tree. There is a folk legend that if a person who is weak since childhood can form a contract with a century-old tree, he will be protected by the tree, and he will grow up healthily and without disaster. Yan Yanqing made a contract with the big tree next to the ancient well since he was a child. Unexpectedly, when making the contract, a fox fell from the tree. When he ran away, his hind legs hooked on the longevity lock given to him by his family when he was born. By accident, he formed a contract with the fox.