<p>The Abyssals represent pure destruction. They have unparalleled power and follow their instinct to remove all life from the world. However, one day, a traitor appeared among them. Silvija, a clueless girl, woke up on the battlefield and learned that she is the "Twilight Abyssal" that the humans hate. After escaping numerous pursuits, Silvija was adopted by the Ilia family and gradually formed her conviction.