"Bring me the strongest man in the world and offer him to me." Stepping out onto the desolate wasteland under the Demon Lord's orders. Just as I was about to be ravaged by the clutches of a monster, the one who saved me was none other than a wandering knight. "What is this, a succubus of the Demon Lord?" A cold blade should rightfully be aimed at my throat. Yet why are the eyes of this immortal, who walks through hell to pierce the Demon Lord's heart, so blindly fixed on me? A succubus trying to offer a knight to the Demon Lord, and an immortal knight who willingly becomes her prey. A bizarre and precarious journey between two beings who should never touch has begun. Unknowing that love would soon become a tragedy.