After the downfall of the Museum organization, the production and distribution of Gaia Memory, the devices granting individuals monstrous power, came to a halt. However, remnants of these powerful artifacts continue to circulate in the black market, stirring strange occurrences and echoing dangers within the city of Fuuto. Shotaro, an enigmatic detective, along with his brilliant partner, Philip, find themselves drawn into a whirlwind of perplexing mysteries. Driven by their unwavering sense of justice, they morph into the formidable Kamen Rider W, ready to confront the menacing forces threatening their beloved city. The fate of Fuuto hangs in the balance as Shotaro and Philip, armed with their wits, their symbiotic partnership, and the powerful abilities of the Gaia Memories, race against time to unravel conspiracies, expose the truth, and protect the innocent. Their journey is a tapestry woven with thrilling battles, intricate plot twists, and the exploration of the fine line between heroism and moral ambiguity. Witness the electrifying transformation of ordinary men into extraordinary heroes as Kamen Rider W defends Fuuto from the shadows.