In the town of Meirentan, the female performer Meilin endures constant bullying and longs to change her fate. When a powerful warlord hears about the legend of Meirentan, he comes seeking a ritual to fulfill his dreams. He deceives Meilin and pushes her into the Meirentan. Meilin survives but is infected by the life-and-death grass, turning into a bloodthirsty monster. She attracts and devours those men who conspire against her. Meilin's best friend, Yinxing, notices the change in Meilin, and her condition worsens day by day. In twenty days, she will become an undead zombie. As the truth is revealed, Yinxing and Meilin face a choice about what fate awaits them.

Yang Guo, orphaned and wandering since childhood, became a disciple of Guo Jing but faced bullying in the Quanzhen Sect due to his mysterious background. He eventually left to study martial arts under Xiao Longnv. Meanwhile, King Jinlun and rogue disciple Li Mochou sought to seize martial arts secrets and strategic maps. Caught in the conflicts of the martial world, Yang Guo and Xiao Longnv faced numerous challenges, and their bond deepened into a bittersweet love.