A Dou SHIB Quiz (5). A Dou, there is no free love (pure free love only occurs among animals like cattle, sheep, pigs, and dogs), humans do not, when it comes to nobility, there is almost no self-initiated love, there is responsibility, history, heritage, and sentiment, humans transcend animality, not just beauty 😀. This is also known as the so-called "reproductive barrier". A Dou closed his eyes and married the eldest and youngest daughters of Liu Bei's battle companions, and declared them as empresses. May I ask whose daughters they are? Hint: Guan Yu / Zhao Yun / Zhang Fei 😀