The CDC (Counter Demon Corporation) is thought to be a saviour to some. They hunt demons and various monsters that may threaten the life of common man. However, the true aim of the Enterprise is to collect Demonic Power fragments, more commonly known as Nephelites - small crystals thought to give one tremendous power. Under the alias of ridding the world of demons, CDC plans on using the Nephelites to create perfect Soldiers.

Not all the demons are evil. Some have, in fact, began to live amongst humans, having become well-trusted members of the community. CDC however, does not care. Often drawing up a fake document expressing how the demon is an outlaw. Most demons now live in seclusion, away from society. Only few know where they live and any accomplices of the demons are slaughtered as enemies of the state.

Celeste, a young witch and a freelancing Nephelite harvester works for CDC. She does not know what the real purpose of Nephelites are, and quite frankly, she doesn't care. She is not too fond of Demons and should she stop fighting, her soul shall be revoked.