Calla has no memories of her childhood except for hazy, recurring nightmares. Working as a servant in Kiriong, the picturesque terrace garden home to one of the most influential families in the Kamphua Dominion, she's content to live a simple life. As long as no one finds out about the forbidden magic stirring under her skin.

When the estranged family heir, Gray—a magehunter in servitude of the royal hold—unexpectedly returns home, Calla's secret threatens to surface. Instead of turning her in, however, Gray offers her the one thing she always feared: to teach her how to use her powers. And as the turbulent tides of long-forgotten magic draw them together, Calla finds it harder and harder to deny her potential.

But Gray knows more than what he admits. In the aftermath of a vile political plot targeting him and with the shadow of a mage uprising cast upon the land, finding out what happened to Calla in her forgotten years might be their only chance to survive.

Except the knowledge could break them both.

It could break the world.