The Final Tide

Xiang Jiming never believed in ghosts, until one day he ran into one... The mysterious world opened up to him: endless staircases, a perverted Gu master who makes people "eat shit," dead disciples who sell their souls for power, sinister mages who steal ghosts' abilities, awakened souls, the abyss... So the world-famous International Police Academy was actually a school for training people to exorcise ghosts and slay demons...