The aged herbivorous dragon, who is often mistaken for a malevolent beast, and Reiko, a youthful girl possessing wondrous abilities, arrive in an entirely new land called Asgar, where the herbivorous dragon repeatedly takes responsibility when he becomes entangled in a complex plot. Though he merely seeks a tranquil existence, the herbivorous dragon continually finds himself trapped in the villain role and progressively walks further toward dethroning the demon king in a relentless cycle of misunderstandings that fuels his destiny.