Elena Acheron

Pure blooded vampire

Introduced as a character from the dark expanse hailing from the archeron family with one of the most pure bloodlines, she noticed noah's aura of vampyre progenitor even when he was disguised as a pureblood vampyre because he only recently awakened and was not proficient in his new abilitie [Unique Origin]. She told noah some information on the celestials/vampyres/dark expanse. She was sent with a misssion to give the person going to the 7th celestial star an item to complete a mission for the vampyres but instead met the Noah - The new Vampyre Progenitor

First time Noah drinks her blood in the chapter 322

Universal Filament (Ch.1176)