For countless years, the Thirteen Clans have been divided into four main factions: the Secret Concealment Alliance, the Demonic Feast Alliance, the Independent Clans, and the Extinct Clans.
For centuries, the Thirteen Clans have been in constant friction due to their differing beliefs.
Internal strife is not solely a trait of pure humans.
According to Xitacil, the disputes between the various factions have evolved from true battles to competitions in different fields.
However, no matter what, they all follow the same philosophy—to strive together to create a better world for vampires to survive.
Though internally competitive, they unite against external threats, and while scattered, they are exceptionally cohesive. Thus, in the dark world, the vampire community has been able to sustain itself, and it can be said that it is precisely the existence of the Thirteen Clans that has forged a vampire dynasty that has lasted for centuries.
