Who Is Kamen Rider Eins? The Female Kamen Rider 1, Explained
Kamen Rider Eins is the franchise's answer to "what would a female Kamen Rider 1 look like" — and her casting connects directly back to the actor who originated the role in 1971.
A Character Fans Kept Asking For
"Give Kamen Rider Eins her own series" is a recurring request in Kamen Rider fan spaces, and it's worth explaining exactly who this character is and why the demand for more of her exists. Eins first appeared in Kamen Rider Eins with Girls Remix, released on TTFC on January 25, 2026, as the fourth and final entry in the franchise's Girls Remix line of specials.
What "Eins" Means
The name Eins comes from the German word for "one," a direct reference to Kamen Rider 1 (Kamen Rider Ichigo), the original 1971 Rider. Eins is explicitly framed as an entirely original character who doesn't belong to any existing continuity or series — she's not a legacy character pulled from an older show, but a new creation built specifically as a female counterpart to the very first Kamen Rider, both in name and in visual homage.
Who Plays Her, and the Character Behind the Mask
Within the story, Amane Tensho transforms into Kamen Rider Eins. Amane is written as a classmate of Rinne Kudo, a character studying abroad at the time of the special. The detail that gives this casting real weight for longtime fans: the actress who plays Amane is the daughter of Hiroshi Fujioka, the actor who originated Takeshi Hongo, the very first Kamen Rider, in 1971. That connection turns Eins from a simple homage character into something closer to a genuine generational passing-of-the-torch — the "female version of Kamen Rider 1" is, in a very literal sense, played by Kamen Rider 1's own daughter.
Why Fans Want More
Kamen Rider has historically had very few female Rider protagonists across more than fifty years of television, making a well-received female take on the franchise's most foundational character stand out even within a single special. Eins with Girls Remix being the final entry in its specific sub-line means there's no confirmed continuation, which is exactly why "give her a full series" keeps coming up as a specific, repeated fan request rather than general enthusiasm for the special itself.
Where This Fits in the Larger Girls Remix Format
The Girls Remix specials as a format exist to let the franchise experiment with female-led takes on established Kamen Rider concepts in a lower-commitment format than a full television season. Eins, as the closing entry in that line, represents its most direct and symbolically loaded experiment — going straight to the franchise's origin point rather than a more recent season — which is part of why it resonated as strongly as it did.
Frequently Asked Questions
Who is Kamen Rider Eins? Kamen Rider Eins is Amane Tensho, an original character created as a female counterpart to Kamen Rider 1, introduced in the special Kamen Rider Eins with Girls Remix (January 25, 2026).
What does the name "Eins" mean? Eins is German for "one," directly referencing Kamen Rider 1, the original 1971 Rider.
Is there a connection to Hiroshi Fujioka? Yes — the actress who plays Amane Tensho/Kamen Rider Eins is the real-life daughter of Hiroshi Fujioka, who originated Kamen Rider 1 in 1971.
Will Kamen Rider Eins get her own full series? Nothing has been confirmed. Eins with Girls Remix was the fourth and final entry in its specific special line, though fan demand for a continuation remains strong.