『仮面ライダーＷ』正統続編始動！小さな幸せも、大きな不幸も、常に風が運んでくる風の街・風都。左翔太郎とフィリップはその風都で鳴海探偵事務所に所属する私立探偵である。「街を泣かせる悪党は許さない」という二人の元に、今日も数々の超常的な事件が持ち込まれる…!　平成仮面ライダーシリーズ最高傑作との呼び声も高い『仮面ライダーW』が漫画に舞台を移して再始動!!　これで決まりだ!

A mysterious woman claiming to be a witch steals a valuable bag from a man and claims that he can’t satisfy her before vanishing into thin air. Having run across her himself, Shotaro, along with his trusted partner Philip take the case, but quickly find that things aren’t right in Fuuto, starting a new battle for the two-in-one detective Kamen Rider W.

The series is a direct sequel of the tokusatsu series Kamen Rider W. In terms of continuity, considering the whole plot of the series and its tie-in movies and specials it was set after the events of the two Kamen Rider W Returns Specials.