When Commander Archer Griffin is ordered to guard the girl whose powers the Albion military wants to weaponise, he expects a mission. What he gets is Seren: stubborn, warm, infuriatingly principled — and the first person to make him question whether real strength comes from violence. She won't pick up a sword. He's never put one down. Firefly is a romance-first, spicy, cosy romantasy — high stakes, high heat, and a heroine destined to save the world with a hero prepared to burn it down to save her.