The Greatest Village Doctor In The World

What a miracle! Who knew that one day an obscure village doctor would become the greatest doctor in the world?
Ling Feng, who was merely a nameless doctor working in a widows’ village, broke his jade pendant by accident. The mysterious liquid flew into his palm and entered his body, making him untangle all the rare prescriptions documented in a legendary medical book and inherit the pharmacological knowledge from the ancient magical doctor.
From that day on, his life became totally different. Li Yumei, the wife of his best friend, became a widow after her husband died of a mining disaster. Ling Feng supported her and her baby financially and protected them from debt collectors. With time going by, he was having a more and more intimate relationship with her. Wang Yan, a beautiful lady who lived in the village, got bitten by a snake. After Ling Feng helped her, she came to his room every night and had a tryst with him. Li Shiyun, the female village head, caught a kind of rare disease. Ling Feng used his medical skills to help cure her of the disease and save her life. Since then, she had owed him a favor. How was she going to pay it back? And what would happen to them in the future?