|This article is about a/an main ally in Kamen Rider OOO.|
|Kamen Rider Birth (Net Movie Only)|
|Series:||Kamen Rider OOO|
|Homeworld:||Earth (Main Timeline Continuity)|
|First Appearance:||Medals, Underwear, and the Mysterious Arm|
|Last Appearance:||Kamen Rider × Kamen Rider Fourze & OOO: Movie War Mega Max|
|Number of Episode|
|48 (OOO) |
Full list of appearances
Erika is a mature young woman who always faces anything with a calm, sometimes bored, disposition. Despite liking spicy foods better, she puts up with having to eat cakes made by her boss everyday. Because she is always made to eat the cakes that Kougami makes, she always has dieting on her mind. She is quite strict and rigid when it comes to performing her duties, constantly refusing to work over time and working earlier than she should despite having pressing matters at hand that needs immediate attention to.
Despite presenting herself as a bored, duty-bound normal secretary to an abnormal boss in an abnormal company, she is actually quite capable of handling herself in fights and uses a Birth Buster at a weaker setting. She is also quite conscious of her own looks, as when she is made Goto's support when he takes up the mantle as Kamen Rider Birth, she adamantly refuses to start working early and would not go anywhere until she has put on make-up and properly dressed herself, despite such behavior interfering with Goto's battles.
In the Net Movie, it was shown that Goto asked her to not to be rude to Date, but she easily beat up Date and Goto. She also takes Goto's Birth Driver away and transforms into Kamen Rider Birth leaving Goto crying.
Erika often leaves the chairman's office to assist Shintaro Goto in information gathering or to speak to Eiji on Kougami's behalf (though she actually outranks him). Later, she becomes Goto's assistant when he takes over as Kamen Rider Birth, but is lazy and causes trouble for him - showing up late to battles and sending a Gorilla Candroid to assist him in her place.
But in episode 40, Erika becomes a bit more reliable when Shintaro agrees to pay her five percent of his salary to be ready for battle against the Greeed immediately. However, she still causes him grief by throwing him only one spare clip of ammunition for the Birth Buster.
Video Game appearances
Kamen Rider Travelers Record
Satonaka appears in the video game Kamen Rider Travelers Record.
Kamen Rider Birth
- Height: 199 cm
- Weight: 92 kg
- Punch power: 3.5 t
- Kick power: 8 t
- Jump power: 45 m
- Speed: 100m/5s
She only transforms into Kamen Rider Birth in Net Movie: Kamen Rider OOO Allstars: The 21 Leading Actors and Core Medals after beating up with Goto and Date.
Like Kamen Rider OOO, Kamen Rider Birth's powers stem from the O Medals that power the Greeed and their Yummy creations. However, Kamen Rider Birth's powers originate solely from the Kougami Foundation's technology developed by Kiyoto Maki to utilize the power of the Cell Medals. On Birth's armor there are capsules called Receptacle Orbs (リセプタクルオーブ Riseputakuru Ōbu), in which the Birth CLAWs system is installed in until a Cell Medal is used to summon the weapons. However, due to using Cell Medals as opposed to Core Medals, Birth was at a disadvantage against a single Greeed. Kamen Rider Birth's exosuit has originally a self-destruct function built into it. However, the self-destruct function has been disabled by Shintaro Goto when Kiyoto Maki defected to the Greeeds' side.
|Kamen Rider OOO|
|Eiji Hino - Akira Date - Shintaro Goto|
|Kougami Foundation and Allies|
|Kougami Foundation: Kousei Kougami - Erika Satonaka|
|Cous Coussier: Hina Izumi - Chiyoko Shiraishi - Shingo Izumi|
|Greeed: Kiyoto Maki - Uva - Kazari - Gamel - Mezool - Ankh (Lost)|
|Yummy: Waste Yummies - White Yummy - Kamakiri Yummy - Otoshibumi Yummy - Neko Yummy - Piranha Yummy - Bison Yummy - Same Yummy - Ageha Yummy - Siam-Neko Yummy - Rikugame Yummy - Kabuto Yummy - Kuwagata Yummy - Lion-Kurage Yummy - Batta Yummy - Ei-Sai Yummy - Omu Yummy - Ika-Jaguar Yummy - Shachi-Panda Yummy - Kuro Ageha Yummy - Pteranodon Yummy - Fukurō Yummy - Unicorn Yummy - Uni-Armadillo Yummy - Shamo Yummy - Ankylosaurus Yummy - Hagetaka Yummy - Nue Yummy|
|Other Characters: Gara - Kamen Rider Fourze - Kamen Rider Double - Kamen Rider Wizard - Kamen Rider Aqua - Kamen Rider Poseidon|
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