Sayo Kadoya is Tsukasa's younger sister. She is a pianist and is protected by Nobuhiko Tsukikage due to her possession of the Stone of the Earth, which is the source of Dai-Shocker's travel between the A.R. Worlds. This allows her to become High Priestess Bishium, whom Shadow Moon manipulated to hate Tsukasa and turn Yusuke into her puppet.
After realizing that she has been used, she destroys the Stone of the Earth and later makes amends with Tsukasa before he leaves. In the manga adaptation of All Riders vs. Dai-Shocker, based on the original script when the movie was planned to be the original ending of the TV series, when Tsukasa gets through to Sayo, Shadow Moon prepares to kill her but BLACK RX intervenes and it's he that smashes the Stone of the Earth. Shadow Moon knows who RX is. In the movie, Tsukikage was clearly enraged when Sayo destroyed the Stone of the Earth, but immediately focused his attention on Decade and Kuuga, leaving the Dai-Shocker Castle to fight them while Sayo was next seen at the end of the movie making amends with Tsukasa in the Hikari Studio as she begins her own journey.
Publication Information
- Decade : Sayo Kadoya
- Japanese : 門矢 小夜
- Type : Pianist
- Gender : Female
- Family : Tsukasa Kadoya : Brother
- Affiliation : Nobuhiko Tsukikage
- HomeWorld : Earth (World of Decade)
- Season : Kamen Rider Decade
- First Appeareance : Kamen Rider Decade : All Riders vs Dai-Shocker
- Last Appeareance : Kamen Rider Decade : All Riders vs Dai-Shocker
- Number of Appeareance : 1 (Movies)
- Potrayer :
- Moe Arai/li>
- Momoka Ishii : Young Sayo
- Main View : Full Movies
Sayo Kadoya is Tsukasa's younger sister. She is a pianist and is protected by Nobuhiko Tsukikage due to her possession of the Stone of the Earth, which is the source of Dai-Shocker's travel between the A.R. Worlds. This allows her to become High Priestess Bishium, whom Shadow Moon manipulated to hate Tsukasa and turn Yusuke into her puppet. After realizing that she has been used, she destroys the Stone of the Earth and later makes amends with Tsukasa before he leaves.
Manga Adaptation
In the manga adaptation of All Riders vs. Dai-Shocker, based on the original script when the movie was planned to be the original ending of the TV series, when Tsukasa gets through to Sayo, Shadow Moon prepares to kill her but BLACK RX intervenes and it's he that smashes the Stone of the Earth. Shadow Moon knows who RX is.
In the movie, Tsukikage was clearly enraged when Sayo destroyed the Stone of the Earth, but immediately focused his attention on Decade and Kuuga, leaving the Dai-Shocker Castle to fight them while Sayo was next seen at the end of the movie making amends with Tsukasa in the Hikari Studio as she begins her own journey. At the end Tsukasa wonders if he has found his place as a Rider and Sayo tells him to "go find the answer". The main characters apparently leave with the other Riders.
Database:
High Priestess Bishium
- Main Article : High Priestess Bishium
- Origin : Earth (Main Timeline Continuity)
- Type : High Priestess
- Height : 177 cm
- Weight : 47kg
- Appeareance : All Riders vs Dai-Shocker
- High Priestess Bishium can discharge laser beams from her eyes.
- Main Article : High Priestess Bishium : Original Version Of High Priestess Bishium