Archenemy

Archenemy is the term used in My Vampire Older Sister and Zombie Little Sister to refer to supernatural beings.

Description
An Archenemy is defined by three criteria: surpassing the limits of known biology by having an infinite or immeasurably long lifespan; being created from or by a human; and being able to spread its unique traits to other people in some manner.

The term "Archenemy" originates from Satan in the Abrahamic religions. It was later generalised to include anything that could be defined as a "demon lord".

Species of Archenemies

 * Vampire
 * Zombie
 * Werewolf
 * Berserk
 * Witch
 * Mermaid
 * Leanan Sidhe
 * Dark Elf
 * Valkyrie
 * Succubus
 * Shoggoth
 * Silky
 * Siren
 * Remora
 * Echidna