While researching The Carnal Prayer Mat, Marcus, a modern Black sinologist, accidentally travels to an alternate Ming dynasty and lands on a battlefield, where a female general drags him back to her tent. After stripping off his armor, he is ridden and conquered completely for the first time—but afterward he finds a letter from Wei Yangsheng. Once in the city, he witnesses the Ming dynasty's greatest libertine, Wei Yangsheng, use poetry to seduce the married woman Yanfang. That same night, Marcus also knocks on her door and fills her to the deepest point; Yanfang is fully stretched for the first time, moaning wildly and clenching tight. Seeing this, Wei Yangsheng is displeased and obtains a yellow-fruit aphrodisiac from a mysterious old man, intending to go after Xiangyun. Marcus follows the old man inside and runs straight into Xiangyun, whose body is burning with the aphrodisiac, her core scalding hot, again and again filled until her mind goes blank. But the old man takes an interest in Marcus's body and reaches out as well. The two male leads begin to compete—and to share—and Ming dynasty eroticism is from then on thoroughly rewritten by this foreign cock.