Beautiful CEO's Personal Doctor

He was once a super expert who frightened the world. Because of a paper contract, he returned to the city and found a casual job. The president's wife would be waiting at home everyday. Life was so uncomfortable!
However, the heavens could not bear to see this. They had to ask her to save the world. A set of silver needles and a silver blade. It was only when he stood at the peak of the world once again that he realized how fragile life was.