After Dawn?

100 Years after the outbreak of the apocalypse, mankind won a century of respite under the leadership of that man. However, he suddenly disappeared 70 years ago, and the surrounding aliens have begun to move around. "Darkness once dawned, this is the day after." … "The rate of fit with the virus largely determines your level of potential." "If the adaptation rate to the virus reaches more than 40%, you can become a mutant, and you can gain powerful physical fitness through inhibitors." "If the adaptation rate to the virus reaches over 90%, it can absorb the virus and awaken to become an evolver." "What's your fitness rate?" Liu Ze looked at the doctor who was talking eloquently in front of him, and then slowly said a number: "Zero." After thinking about it, he added: "But I can tear the alien apart with my hands." Doctor: "???"