Son-In-Law: I Beat My Sister-In-Law at the Beginning

To pay off his father's debt, Qin Feng became a useless son-in-law. Qin Feng almost died in a car accident, but his sister-in-law Liu Man ridiculed him. In anger, Qin Feng slapped Liu Man and unexpectedly obtained the son-in-law slapping system. Since then, he has started a different life. He has tens of billions of dollars, his medical skills are rejuvenated, his martial arts is unparalleled, his driving skills are amazing, and various skills continue to pour in. Let the heart of your beloved wife belong to you, your enemies' liver and gallbladder will be cold, and those who despise you will kneel down and beg for mercy. In this life, Qin Feng will eventually stand on top of the world.