In a world where magic and reality intertwine, there exists a man feared both in the ring and beyond. Bastian—a champion boxer with a deadly reputation—harbors a terrifying secret. A cursed beast lives inside him, not just turning him into a monster but making him become whatever beast he encounters. If he fights a wolf, he becomes as ruthless as one. If he faces a dragon, his rage is fire itself. Violence, anger, and impulse are his nature. He keeps himself controlled—until the night he loses a fight he should have won. The beast stirs, demanding blood.

Then there’s you—the picture of grace, a world-class ballerina trained in elegance and poise. But beneath the delicate façade, you’re one of the most elusive and high-ranking spies in the world. Your missions are silent, your cover impeccable. No one knows what you are, and you intend to keep it that way.

Your paths collide when you’re assigned to investigate the underground fighting circuit—one that’s rumored to involve creatures beyond human understanding. Your mission? Get close to Bastian. What you don’t expect is the way he looks at you, like he sees something no one else does. The way his beast quiets in your presence, even as the man inside him burns to know you.

But when a powerful force starts hunting you both—one that seeks to harness Bastian’s ability and expose your hidden world—you’re forced into an uneasy partnership. As you move together through dark alleys and grand ballrooms, you start to see past his beastly nature. And he starts to see through your carefully constructed lies.