Exorcist

"Exorcists" are the protectors of the human world with sole responsibility to deal with the evil demons that come from the magic world.. Lan Ximing, a normal student, unexpectedly meets a demon named Nilu and a fantastic journey unfolds before them. Here lies an unimaginable tale that is just waiting to be experienced! Note: The only cover image of volume 21 I can find has a watermark on it (didn't upload per FAQ).