Travel Through the Tang Dynasty and Become the Richest Man

Yuchi Jingde: If you can't fly, I'll beat you with twenty sticks! Cheng Feng: I built a hot air balloon and hit Yuchi on the butt with twenty sticks! Emperor Taizong of the Tang Dynasty: I want to expedition to Goguryeo, but unfortunately their city is too deep and their walls are too high! Cheng Feng: I have a reply! No matter how high the city wall is, it will be destroyed! Honorable ladies and gentlemen of Chang'an: The high temperature in summer is too hot to endure! Cheng Feng: I have popsicles, which will keep me cool all summer long! ... Li Er: With the invention of God, I can destroy Goguryeo, swallow up the Turks, conquer the food, and unify the world! Cheng Feng: Slow down! Slow! Slow! I have to pay...