For over 3,000 years, Y/n has lived in the shadows as the world’s only Quadbrid — a rare and impossible being who is simultaneously an Original Vampire, Werewolf, Witch, and Archangel. Carrying the power of immortality, ancient magic, supernatural strength, and celestial abilities, she has watched civilizations rise and fall while hiding from those who would fear or exploit her. When the Avengers encounter supernatural threats unlike anything they have faced before, they discover Y/n and uncover the truth behind the legends. As they learn that she is not a monster but a protector who has spent centuries fighting alone, the Avengers must decide whether the Quadbrid is their greatest danger or the powerful ally they need to save the world.