Son-in-Law: The Good-for-Nothing War God

He left home as a teenager to join the military and became the supreme War God. After victory in the war, to fulfill the solemn promise he made to his father on his deathbed, he concealed his identity and became a live-in son-in-law to a second-rate family!

With his overwhelming power, he face-slaps everyone who looks down on him or mocks him, wins the heart of a beautiful woman, and gets his revenge in thrilling fashion! He rises to the pinnacle of the world!