I Just Want to Be a Door-To-Door Son-In-Law

Twenty years of imprisoned life by the subjugated king has smoothed the edges of Su Xin who came from time to time. Why does he have a mission? A heavy responsibility? Help the former dynasty? Go away! He just wants to be a son-in-law who can lie down! But some people just don't want to let Su Xin lie down, and they insist on forcing Su Xin to make progress, and wait until Su Xin reacts and progresses to become the emperor!