Fuuto Tantei Movie: Kamen Rider Skull no Shouzou

When Tokime asks about the origin of Gaia Memories and how Kamen Rider W was born, Shoutarou begins telling her about the night that shaped his life. At the time, he was the young assistant of detective Soukichi Narumi, a mentor he admired despite constantly resenting being treated as an unfinished apprentice.

Shoutarou did not know Soukichi was secretly fighting as Kamen Rider Skull while Dopants began appearing throughout Fuuto. A mysterious request leads them toward a fateful night in which Shoutarou also meets Philip. The story reveals the price paid before the two young men could become the two-in-one detective known as Kamen Rider W.