Last Name: Koike
Birth date: September 3, 1993
Birthplace: Tochigi Prefecture (Kantou Area), Japan
Height: 5' [155cm] (as of Dec. 10, 2005)
Blood type: O+
Astrological Sign: Virgo
Hobbies: Playing with her dog, Cheese; Jazz Dance, Piano, Drawing, Jump Rope, Swimming
PGSM Roles: Human Luna, Sailor Luna
Official Website: Very x Berry Pro. (agency profile); Official Blog
Koike began her junior idol career just before she debuted on PGSM. She appeared in several magazines in 2004, including Peace Mook, PurePure, and Newtype. She also released a jr idol DVD titled IdolLand/Clara.
On Pretty Guardian Sailormoon:
As Sailor Luna, she really enjoyed playing with the toys she was given. She didn't have any difficulties in taking over the role of Luna .
Her only regret is that she wished she could have played Sailor chibimoon instead, as Pink is her favorite color  .
Projects following PGSM:
Following her work on PGSM, Rina has appeared in commercials and has made a handful of television appearances. She was also in the film Einstein Girl in 2005.