Vampire Guards

A pair of Vampire Guards were seen to be involved with Ferid's plan to transport two specific children. Shortly after the Catastrophe event they were present in Sanguinem. They had evidently been a part of an effort to have Yūichirō Hyakuya and Mikaela Hyakuya prepared to have their memories accessed.

Appearance
Both vampires were fully concealed by their clothing. This consisted of a hood which covered their heads aside from their faces. There was enough shadow cover provided that their faces were not visible at all. The matching white colored cloak reached down to near their feet. It appeared they case they wore black colored boots.

Personality
Committed enough to stand guard, each also promptly delivered updates when addressed. Where Ferid was one willing to go behind other's backs, it is not known whether these two vampires were two such loyal aides willing to also go behind what the higher ranked Krul Tepes may have opted for given the situation they were involved in. Either way, they were also willing to allow humans into the kingdom if arranged, ones which were not children being brought in as a blood supply.

Story
Stationed in different locations, one guard was waiting alone in a secluded corridor. When Ferid approaches, the first vampire informs him that the humans' delivery arrived. Questioned where they put it, the vampire answers the second guest room. It is unknown whether the vampire heard they were being thanked as they were decapitated by Ferid.

The second vampire is awaiting along a different corridor. After Ferid enquires about the kids, this vampires responds that they have been drugged and are sleeping. As with the other vampire, it appears they case they were killed by Ferid as well.

Ferid Bathory
They were involved with seventh progenitor Ferid Bathory's plan involving Yu and Mika. For all their commitment it would appear their reward was to be murdered by him. Trusted to have helped him in such a sensitive plan up until this point, they may not have been seen as trustworthy to keep this secret, or may have fallen to the whims of someone clearly psychotic.

Yūichirō Hyakuya
After Yu had been brought into the underground vampire city, it would appear at some point these vampires were responsible for bringing him to a room and putting him to sleep. If Yu ever had his memories accessed by Ferid and Guren, it was because of these vampires helping to facilitate that.

Mikaela Hyakuya
They also arranged for Mikaela Hyakuya to be brought to where his and Yu's memories could be viewed by Ferid and Guren.

Guren Ichinose
With Guren Ichinose it would be a rare case of vampires assisting humans. With them standing guard it would have helped Guren maintain his position to await Ferid's arrival. It seems these vampires were also possibly involved with the initial delivery and perhaps a human's entry into Sanguinem.