In troubled times, human lives are like grass, heroes do not care about their origins, and heroes do not care about their preferences. Cao Cao started his army since Chenliu, with the original intention of helping the Han Dynasty, but in his battles, he unlocked his unique preference for "recognizing people" and "accommodating them" - compared to young girls, he preferred women who had experienced the world, had character, and stories. The world was puzzled by this, and called it "the art of recognizing people." Only Cao Cao knew that behind this lay the rules of survival and different obsessions in troubled times.