All of the incidents that have occurred around Girls Remix up until now have been part of Sumire Kurono's plan to create the strongest Kamen Rider. Now, that plan is moving into its final stage. Sumire kidnaps Nayuta Mikazuki once again. After performing the final surgery, Kamen Rider Eins is finally born. Will Girls Remix be able to get Nayuta back? And what will be Nayuta's fate now that she has become Kamen Rider Eins?