The world of the unusual creatures was as complex as human society. They also had infighting and factional rivalry, more than humans in fact. Even in today's precarious situation, many of the unusual creatures could not cooperate openly; this was probably related to the long history of most of their families. Their family history had begun from the Mythological Era, and many of their friction or feuds accumulated over thousands of years. Even if two families were free from estrangement, they were bound by ancient traditions passed down for thousands of years. As such, they could not fully cooperate. This was why such powerful creatures were able to be broken down by hunters and the Church. They had too many races and factions, which were not united.