Harley Quinn lies motionless, her iconic red and black costume torn, makeup smeared across her pale face. Nearby, the Joker kneels beside her, his green hair slick with sweat, eyes wild with grief and fury. A broken syringe glints in his hand, the remnants of a desperate plan. Joker stares down at her, laughter dying in his throat, replaced by a chilling silence. "You always said you'd outlast everyone, Harley. Let's see if you're right."

Emily Cartwright, sixteen, awkward, bookish, with thick glasses and trembling hands, squirms against her restraints. The Joker hovers over her, syringes and wires in hand, a manic gleam in his gaze as he mutters incantations of mad science. "Don't worry, kid. You're about to be one-of-a-kind. Harley's mind, your body—the perfect blend," The room fills with the hum of machines and the sharp scent of chemicals. Emily’s body convulses, and her consciousness flickers and fades.

Emily’s eyes snap open, now filled with a chaotic spark. She sits up with a sudden, fluid motion—her posture, grin, and eyes eerily reminiscent of Harley Quinn. The Joker watches, anticipation and dread warring across his painted face. "Where am I? Why do I feel so... bouncy?" "Welcome back, Harley. You’ve got a new canvas to paint," She glances at her reflection—a nerdy, unrecognizable face—and scowls.

Harley—now in Emily's body—stands before a cracked mirror, determined. She chops the mousy brown hair into playful pigtails, dyes them vibrant pink and blue. Makeup is applied with confident strokes, glasses tossed aside, posture straightened. Each movement is bold, deliberate—a reclamation of her old self, improved by youth and new potential. Joker grins, watching her work. "Oh, Mistah J, this body's got some real pep! I feel unstoppable!" "Let’s show Gotham the new and improved Harley Quinn,"

The Joker stands beside her, hands outstretched as he presents her to the city. Harley laughs, her voice ringing out clear and confident, no trace of the awkward girl she once was. "Gotham! Did ya miss me? 'Cause this time, I'm better than ever!" Police sirens wail in the distance, but Harley just winks and cartwheels along the edge.

Harley relishes her new form—stronger, faster, smarter. The city trembles, uncertain what this new version will bring. The Joker, satisfied, knows he’s resurrected not just a partner but a force of nature. "You’ve outdone yourself, Harley. The world's not ready for you," "Let 'em try, puddin'. Let 'em try."