After suffering defeat at the hands of the dragon race, the legendary dragon-slaying hero Leon is captured and brought before the fearsome Silver Dragon Queen. Expecting only torture and death, Leon chooses one final act of defiance—he casts a forbidden curse meant to drag the queen down with him.

But something goes horribly wrong.

Instead of destroying her, the spell spirals out of control and creates an irreversible soul-binding curse between them. Their lives, emotions, and fates become tightly connected, forcing the sworn enemies into a relationship neither of them can escape. The proud Dragon Queen is furious, while Leon finds himself trapped in an absurd and dangerous situation far beyond his expectations.

Now, the once-glorious hero who dedicated his life to slaying dragons must somehow survive while being bound to the most powerful dragon of all.