I Build Immortality with Flesh and Blood

Li Xuanji traveled through time. Good news: You're lucky. Bad news: I traveled to a strange world of cannibals, and at the beginning there were two rusty nails nailed to the coffin board. Worse news: The countdown in his head reminded him that he only had seven days left to live. Faced with a hellish start that almost had "the end of the play" written on his face, Li Xuanji didn't cry or beg for mercy. As a top bioengineer in his previous life, he looked at the butcher in front of him with a pig's trotter on his right hand and pus all over his body, and calmly listed a calculation in his mind: "It consumes three days of Yangshou + one dog's tail grass + thirty seconds of evolution time =???" Thirty seconds later. The butcher fell in a pool of blood, his throat pierced by a mutated bloodthirsty grass. Li Xuanji pulled out the nails on his body and chewed the highly poisonous Yousha knot to stop the bleeding while complaining to the corpse: "Remember in the next life, the villain dies because he talks too much... Although this time it is me who talks too much." … This is a story about using reason (and nonsense) to turn all monsters and monsters into "engineering materials" in a twilight cage of despair. Li Xuanji: "I am a very kind person. As long as you don't touch my assets, we can sit down and talk about your biological structure."