The three middle kinds, the very vampires he had encountered before, were the ruled commoner clans.
Moreover, there were three outcast clans that were known as 'Wanderer Clan,' 'Deformed Clan,' and 'Reformer Clan.' From their names, one could roughly make out their predicaments.
Wanderers, frankly, were vampires who didn't wish to join any organization and preferred to live their lives alone or with just a small family.
The Deformed Clan, however, were in a more tragic situation. Due to many vampires reproducing through inbreeding, the probability of deformities in their offspring greatly increased.
Those born with appearances abnormal to humans, the deformed infants, would be abandoned from a young age, becoming part of the Deformed Clan. As they couldn't reveal themselves in public, they were forced to stay hidden in the dark sewers.