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White-collar Yan Feng suffers from advanced bone cancer, but unexpectedly mutates, gaining super senses and self-healing abilities. Before he could rejoice, he discovered that he would do some incredible things; Such as eating raw meat, peeing to mark territory, having the urge to mount, and terrible mania, etc.; The most deadly thing is that he loses control every once in a while and turns into a humanoid monster full of killing and eating desires...