The Mountain Doctor's Son-In-Law Is the God of War

He is the successor of a miracle doctor, but he was born in an ancient hidden village. He is the God of all gods, but he never mentions it to anyone. He is the son-in-law of a wealthy family, but the other party treats him with hatred as deep as the sea. He is an extremely invisible rich man, but he never shows off! His family background is mysterious and unknown to outsiders! He could have been aloof from the world, but for the sake of the kind-hearted woman he loved, he was willing to be a leaf and a bodyguard to protect her...