Zombies Also Need to Level Up! Top Operators Become Corpse Kings

Zhang Zijing was hit by a car while delivering food to Brother Fu, and after his death he was reincarnated into a world where hierarchy is respected! Everyone else is fighting monsters and leveling up, but Zhang Zijing is a zombie and is treated as a monster by others! Zhang Zijing, who had been hiding, accidentally discovered that he could level up by absorbing players' experience, so he started his god-level operation!