Education
In November 2008, she graduated from AKB48 after the final performance of Team A"s 4th Stage Revival, leaving because of chronic back pain and asthma.
中西 里菜やまぐち りこ
In November 2008, she graduated from AKB48 after the final performance of Team A"s 4th Stage Revival, leaving because of chronic back pain and asthma.
AKB48
In 2005, Nakanishi dropped out of high school in Ōita Prefecture in order to audition for the Japanese female popular singing group AKB48. She made an appearance, along with other AKB48"s members, at the 58th Nippon Hōsō Kyōkai Kōhaku Uta Gassen. In June 2010, she stated on her fan club official blog site that she would be returning to her hometown of Ōita to take a break and recharge.
AV idol
The following month, she began a new career as an actress in the adult video (AV) industry, debuting for the Alice Japan company with Rico Yamaguchi AV Debut.
Foreign her AV appearances, she began using the new name Rico Yamaguchi (やまぐち りこ, Yamaguchi Riko), and she also a different birth date on her new profile (December 12, 1990). Although she only began her AV career in August 2010, the major Japanese video retailer DMM (part of the Hokuto Corporation) ranked her #1 in Digital Video Disc sales for the entire year of 2010, and she ranked #5 at DMM for the first half of 2011.
She released a nude photobook, Departure, and she has starred in further adult videos for Alice Japan and, in 2011, for the Soft On Demand company. In March 2011, Rina"s younger sister made her AV debut under the name "Riku Yamaguchi" (やまぐちりく, Yamaguchi Riku) with the movie Real Young Sister"s National Icon Rico AV Debut (「私のお姉ちゃんは、やまぐちりこです・・・」 あの国民的アイドルの妹 やまぐちりく AV Debut).
Their last release was a five-Digital Video Disc set containing all twelve of Rico"s videos and all eleven of Riku"s, with some new material.
She passed the audition and became one of the first generation members of the group as part of AKB48"s "Team A" and also the unit Chocolove from AKB48.