Zombie World: Sign in for 20 Years, I'm Invincible

The physical body travels through the zombie world, and after being tempered by the power of time and space, the rejuvenation turns into the appearance of six or seven years old.
Follow Shi Jian, Lin Fengjiao and others to apprentice Maoshan and awaken the golden finger: God-level sign-in system!
After [-] years of signing in, I found out after going down the mountain that I was already a ceiling-like existence.