Doomsday: I Have Countless Power Cards

The end of the world is coming, and changes are occurring. Zombies are rampant and living bodies mutate, making it difficult for the weak to survive. A few people break through their limits and awaken their powers. Jiang Yan has a system that allows him to upgrade by killing mutants, and he can continuously upgrade the abilities he obtains. He kept killing, and suddenly he became invincible. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.