How Could the Little Slave Not Be Afraid of Ghosts?

Xiao Fan traveled to a supernatural world, where demons were rampant and ghosts shuttled around, but humans had become the weakest creatures. They huddled in an area protected by barrier energy and endured humiliation to survive. There is also a type of people among humans who can kill demons and ghosts. They are called Immortal Controllers. Immortal warriors are one in a million. Many people have been trained since childhood, but after several evolutions, only a few are left... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.