Zombie: a Practicing Genius, Uncle Jiu Cried with Envy

When I woke up, I was in the zombie world where Uncle Jiu was, and there was a ferocious zombie standing in front of me. Before he could react, he almost fell to the ground and turned into a box. Fortunately, the system arrived in time. After that, he became a disciple of Uncle Jiu and followed him to slay demons. As time passed, Uncle Jiu discovered that his apprentice seemed not to be normal...