The ancient dragon Eve, who has been guarding the ruins of the former empire for hundreds of years, accidentally discovered Ronald, a foreign mercenary who was being hunted during a patrol. In order to hide the traces of this invading life, she disguised the amnesiac young man as her own dragon servant to deal with the doubts from the Presbyterian Church. When the war finally came to the human settlement sheltered by the only remaining ancient dragon tribe, they were forced to fight side by side. However, what kept flashing in Ronald's memory was a well-planned secret case of dragon stabbing; the more deadly lie was that the dragon knight contract brand was actually a survival trap she had set long ago: it turned out that she was destined to fall in love with the enemy behind his genocide from the first day they met.
