In our world there are many paranormal Abnormity. Some of these are harmless. some are aggressive, while other are just jokes. One suchthing that falls into the aggressive category is the singetsu. A singetsu is born when a person or a spirit completly giving into their innrr demons and seek aids of demons. many types of singetsu follow a different type of behavior. Few type of these behavior are predator, nesting, parasite, vampiric , nocturnal. In case that such event occur one must seek out a person who can perform an exorcism.