If you know Kingdom, you know Ryo Fui — the chancellor who nearly rivaled the young king Ei Sei. He was real. Lü Buwei (Lu Buwei) began as a merchant in Handan, bought a forgotten hostage prince as a “rare asset worth hoarding,” made him king of Qin, and became the most powerful man in the state. Then the boy he had guarded grew up into the First Emperor — and destroyed him. In the article on 〔Bu coins (the…