For several centuries now, bloodthirsty demons - forest, air, fire, stone, sand - go out hunting every night. Once upon a time, people fought with them on equal terms, but those days are long gone, and now the only fragile defense against evil spirits is magical symbols, whose origin is lost in myth. In addition, only a select few, masters from the guild of marksmen, master the art of using these amulets-symbols. On a devastated, savage, war-torn Earth, saving ancient knowledge is kept under lock and key, while the supernatural power of demons grows stronger every night...