Mr. Yi Can't Forget Her

To get revenge, she willingly takes her younger sister's place and marries the crippled eldest son of the Yi family. To uncover the person who killed his older brother, he plays two roles: the Yi family's second young master by day, and his crippled older brother by night. Scheming carefully and plotting each step, who will be the first to fall in love? And in the end, whose pawn will each of them be?