Siheyuan: A Chance Encounter That Changed My Fate

He Yuzhu, who was an ignorant boy and took his sister all the way through the courtyard of old Beijing, met martial arts masters, strange people in the world, descendants of the royal family, heirs of imperial doctors, and unreliable fathers, the poor people who were inextricably linked, beautiful female neighbors, wealthy capitalists, cooking skills, food, and even boxing skills, medical skills, and the way to survive in ordinary old Beijing life.

Fine. Mind-blowing. Learn something while you are still young.