Koike started a junior idol career with the DVD Big Brother at age 10, when she was in 4th grade. Koike Rina played Sailor Luna in the 2004 live-action version of Sailor Moon, Pretty Guardian Sailor Moon. She also played the role of Shizuka on the 2008 Kamen Rider Series, Kamen Rider Kiva. In early 2011 she starred in the short TV drama Onegai Kanaete Versailles, alongside visual kei metal band Versailles. After graduating from Asia University in 2016, Koike took a two-year break from the entertainment industry to spend time studying English in New Zealand and Australia.

KNOWN FOR

Kamen Rider
2008
Nikenme Dou Suru? ~Tsumami no Hanashi~
2019
Pretty Guardian Sailor Moon
2003
Kamen Rider Kiva
2008
Ultraman Ginga S
2014
ISHIKO and HANEO: You're Suing Me?
2022
Gourmet Detective Goro Akechi
2020
DREAM STAGE
2026
Spiritual Teacher, Kyoko Odagiri
2010
Great Selection Taxi
2014
Mother at Fourteen
2006
Sailor Zombie
2014

FILMOGRAPHY

All
Movies
TV
Acting
38
2026
DREAM STAGE
as まなの母
2025
Girls Remix in Halloween Party
as Shizuka Nomura / Kamen Rider Kiva-la
2022
Grand Guignol
2022
ISHIKO and HANEO: You're Suing Me?
2021
Nile Perch Girls' Association
as Mahiro Takasugi
2020
Hobonichi no Kaidan: Vol 1
2020
Gourmet Detective Goro Akechi
as Hina
2019
Nikenme Dou Suru? ~Tsumami no Hanashi~
2016
Ultra Fight Victory
as Sakuya
2016
Hatsukoi Geinin
as Eri Yamaguchi
2015
Ultraman Ginga S the Movie: Showdown! The 10 Ultra Warriors!
as Sakuya
2015
Happy Landing
as Aiko Machida
2015
Innocent Lilies: The End And The Beginning
as Rina Kinugasa
2014
Girl's Blood
as Mayu
2014
Sailor Zombie
as Arina
2014
Great Selection Taxi
as Yoko Kuroda
2014
Ultraman Ginga S
as Sakuya
2014
River's Edge Investigative Agency Okawabata
2013
The Serialist
2013
Yakuza Ladies Neo
2011
Fulfill My Wish Versailles
as Rina Fukurokoujo
2011
Challenged ~Graduation~
as Hiyo Okudera
2010
三代目明智小五郎〜今日も明智が殺される〜
as 小林 めぐみ
2010
Spiritual Teacher, Kyoko Odagiri
as Toda Shoko
2009
Challenged
as Okudera Hiyo
2008
Kamen Rider Backwards-Kiva: Queen of the Demonic Castle
as Shizuka Nomura
2008
Kamen Rider Kiva: King of the Castle in the Demon World
as Shizuka Nomura
2008
Kamen Rider Den-O & Kiva: Climax Deka
as Shizuka Nomura
2008
Punch the Blue Sky
2008
Kamen Rider Backwards-Kiva: Queen of the Demonic Castle
as Shizuka Nomura
2008
Kamen Rider
as Shizuka Nomura
2008
Kamen Rider Kiva
as Shizuka Nomura
2007
Yunagi City, Sakura Country
2006
Tales of Terror: Final Night 2
as Aya Sato
2006
Kaidan Shin Mimibukuro: Dai Go Ya
as Aya Sato
2006
Tales of Terror: Final Night 1
2006
Mother at Fourteen
as Nagasaki Sayaka
2003
Pretty Guardian Sailor Moon
as Luna Tsukino / Sailor Luna