In the spring of 2006, Rina was scouted by Box Corporation's talent scout in Harajuku. They offered her the chance to become an actress under their agency. However, she declined their offer and states in their interview, "I have absolutely no interest in the entertainment world." Therefore, the agency let the young girl off. Later on, Rina regretted turning down such a golden offer and so, she sends the required documents to the company. In September 2006, she was coincidentally scouted again by the same talent scout in Funabashi but it was not until in April 2007, that she was accepted by Box Corporation as their newest talent to the agency.

As of February 2008, Rina currently portrays Saki Royama/Go-onYellow in Toei Company Ltd.'s Engine Sentai Go-onger, broadcasted by TV Asahi every Sunday at 7.30am. Gifted with an adorable face and an angelic smile, Rina's popularity grows rapidly throughout Japan. On 21st July 2008, Rina releases her first DVD entitled "Smile" and a meet-and-greet session was held one day before the release date. Her 2009 calendar is also available for purchase on various Japanese webstores. On 1st October 2008, Rina, along with her fellow G3 Princesses, Yumi Sugimoto and Nao Oikawa, release a self-titled mini album containing songs sung by the band members themselves. A meet-and-greet session is to be held on 5th October 2008.

Due to her popularity at the peak, Rina was chosen to be one of the soccer managers in the All Japan High School Soccer Tournament which first match aired on NTV on 8th November.

* Her favourite singer is Mika Nakashima.
* She likes strawberries, fish and meat.
* Her character is "My Pace" which means she likes living her life the way she likes.
* She is afraid of bugs.
* Her ideal date is walking on the beach during sunset while holding her date's hand.
* When her acting agency Box Corporation offered her to be an actress, she turned it down but accepted it on the second offer.
* She is not a great cook in the kitchen.
* Fellow Go-onger cast member, Kenji Ebisawa, gave her a DS Lite on her birthday.
* Her older brother used to watch Tokusatsu and she sees a heroine in her mother.
* She wakes up at 5am everyday for filming but automatically wakes up at 3am on day offs.
* She shares the same romanized name with an old time porn star, however, their names in kanji differs from each other's.
* She admits that she's terrified of the explosions that occur during the filming of Go-onger.
* She is ranked 249th out of 422001 people according to Oricon Style's page.
* She is currently selected to be the support manager for the 87th All Japan High School Soccer Tournament. Previous managers were famous idols like Maki Horikita, Aragaki Yui and Kitano Kii, this shows that Rina is slowly climbing up the ladder of popularity