Shock! I Became an S-Class Ghost Controller by Exorcising Corpses.

Wang Yu traveled to a parallel world full of dangers and strange things. At the beginning, he encountered a supernatural incident at school, and half of the students in the class were killed by evil spirits! In despair, a voice suddenly sounded! Bite! The corpse extermination system has been activated! "System?" Excited Wang Yu immediately opened the system! "A bell? Are you kidding me?" Seeing that the system only gave him one bell, Wang Yu was desperate again and shook it casually! Who knows! Accompanied by the sound of "ding bell bell...". The fierce ghost that was about to attack Wang Yu suddenly disappeared! Then, Wang Yu discovered that he could actually control the body of the ghost controller!