Chapter 499: Chapter 499: System Upgrade!

Just like what Tang Li Xue had expected, those black-clothed assassins could no longer track her as long as she has [Ethereal Form] and [Art of Concealment] activated.

But after Tang Li Xue was completely exhausted and decided to take rest to recover her stamina, they could immediately track Tang Li Xue again.

"These annoying scums! Oh, come on guys! Until when will you continue to follow me?! Do you all really not have any other target or work to do?!" Tang Li Xue complained while gnashing her pearl-white teeth in exasperation.

Tang Li Xue also realized that maintaining both [Ethereal Form] and [Art of Concealment] would drain her stamina rapidly, let alone if she also used [Moonlight Flickering Flash Step] to travel quicker.

So, it also made her waste more than half of her time resting and recovering his stamina!