After I Woke Up, My Wife Invited Me to Leave

I, the soldier king codenamed "Dragon Tooth", became the stupid son-in-law of the Su family as soon as I opened my eyes. On our wedding night, my beautiful wife, who was critically ill, asked me to sleep on the floor. My father-in-law regards me as the god of plague, and my second sister's sword always wants to "scrat my bones and cure the poison". Until I used battlefield medicine to revive my wife and used commercial warfare to crush my opponents. The poisoned second uncle knelt down, and the three provocative families went bankrupt. The second sister who once pointed a sword at me burst into my room with red eyes: "Um... Can you teach me something too?" Later, the Su family became the richest man, and I admired the moon with four beautiful ladies in my arms. The father-in-law asked in a trembling voice: "Xian son-in-law, who are you?" The eldest lady in my arms chuckled and answered for him: "He is a fool, our fool, and the most fool that cannot be messed with in this world."