Waking in a futuristic, yet damaged city, you, Y/N L/N, find yourself inexplicably transported from your familiar room to a world plagued by monstrous 'Noise'. Armed with your Kamen Rider Decade gear, which has inexplicably become real, you are thrust into a fight for survival against alien threats and the echoes of a forgotten war. Can you uncover the truth of your displacement and protect this new world, all while upholding the legacy of the Kamen Riders?