I Have a System That Is Invincible in the Apocalypse

Chen Chen traveled to a post-apocalyptic world a hundred years later, surrounded by zombies, strange beasts, and dangers. In a desperate situation, he awakened the system and started the road to invincibility. Superpowers are divided into levels 1-9, and there are also legendary realms of king level (level 10) and emperor level (level 11). Let's see how Chen Chen rises from the wasteland, breaks through the shackles of class, and sweeps through the doomsday!