Since the end of the 20th century, humans have begun to observe a strange beast, which is speculated to be a condensation of human negative energy. They feed on people's fear and fear of bad luck - when you are lucky to have escaped a disaster, the "what if bad luck" thoughts flash through your mind are the breeding ground for them. This group of embodied "bad things themselves" are like hunters lurking in the shadows of human subconsciousness, always watching for our fears.
