With Zhang Yi's current strength, heading straight to the third layer of Undead City to farm level 26-30 undead shouldn't be a problem.

However, Undead City follows a rule of gradual progression. Players must start from the first layer and complete each layer's challenge to advance to the next.

Zhang Yi checked his challenge progress. The hunting progress for Skeleton Warriors, Skeleton Archers, Undead Mages, and Undead Assassins was almost at 800, not much left.

After all, he spent almost the entire day yesterday farming in Undead City.