Princess Isolde dedicates ten loyal years to temple commander Leon, dreaming of a harmonious future until she stumbles upon him passionately kissing her younger sister Eileen. Devastated by the double betrayal, Isolde volunteers to take Eileen's place as the annual human offering sent into the volcanic mountains to appease an ancient dragon monster.
Arriving in the wasteland, Isolde discovers that the dragon Kalen is not a bloodthirsty beast, but a lonely, misunderstood immortal yearning for gentle companionship. As their tender connection heals centuries of emotional wounds, Leon arrives weeping for reconciliation, only for Isolde to reject him firmly and build a prosperous empire alongside her dragon lord.
