What, My Wife Is Pan Jinlian?

I transmigrate into Wu Dalang, the most pitiful man in history. I have the stunning Pan Jinlian at home, and Ximen Qing covets her every day. What am I supposed to do? Luckily, the divine sesame cake System awakens! An indestructible body? Sell a hundred sesame cakes, and it’s mine! Eighteen Dragon-Subduing Palms? Sell a thousand sesame cakes, and they’re mine! While everyone else is still fighting over power and profit, I’ve already covered the entire Song Empire’s banks with sesame cakes! Ximen Qing wants to cause trouble? The Liangshan heroes beg me to protect them! The emperor wants to reclaim his power? He can ask the million-strong army guarding my grain supplies first!