Foolish Country Doctor: It Started When My Sister-In-Law Saved Me

[Miracle doctor + fun + countryside + local flavor + invincibility + revenge] He was once the dazzling son of a wealthy family. One night, he was assassinated by an insidious close person! Almost died. Became a fool! Fortunately, he was lucky enough to be rescued and adopted by a kind-hearted sister from the countryside! His blood brought him great power! Mainly, he should also thank this good sister named Xiniang.