Peerless Medicinal Sage is a Manga/Manhwa/Manhua in english language, Action series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.cc fastest updating comic site. The Summary is

He is a medical expert with the magical powers of the sky. He is also the first-class soldier in the underground world, but he... married a superb willful wife, let’s see how the soldier can respond...