Kanemitsu Ruru was born on September 2, 2005 in Tokyo, Japan.
Prior to joining Hello! Project, she was active as a musical actress.
Kanemitsu participated in Morning Musume '16 Shinseiki Audition, but failed.
In late 2017, Kanemitsu took part in the Hello! Project Shin Member Audition and made it to the finals before it was ultimately decided that no one would pass the audition. Following the audition, Kanemitsu accepted an invitation to join Hello Pro Kenshuusei.
Kanemitsu and the other finalists who accepted their invitations were introduced, and performed in the Hello! Project Kenshuusei Happyoukai 2017 12gatsu ~Conti→New!~ concert on December 10.
On October 2, she participated in a fanclub event titled Hello Pro Kenshuusei Special Event in Nagoya ~Hajimemashite! 5~ at Midland Square Cinema 2 alongside Ono Kotomi, Yamada Ichigo, and Shutto Anna.
From June 6 to June 23, Kanemitsu performed in the musical Harukanaru Toki no Naka de 6 Gaiden ~Tasogare no Kamen~.
On July 11, she was one of the first five Hello Pro Kenshuusei members assigned to the rotational Hello Pro Kenshuusei Unit, who will perform in the Hello! Project 2019 SUMMER concert tour starting on July 13.
On December 29, her profile was removed from the Hello! Project website, and it was announced that she had requested to end her training with Hello Pro Kenshuusei.
She has an older sister named Honoka, who was in Coco Smile with Tamura Meimi. She also has a pet dog named Hachi.
Here is a list of nicknames that was used to refer to Kanemitsu Ruru:
- Ruu-tan (るーたん): Used prior to joining Hello Pro Kenshuusei and one of her nicknames as a Hello Pro Kenshuusei member.
- Ruru-chan (るるちゃん): One of her nicknames as a Hello Pro Kenshuusei member.
- Ruru (るる): One of her nicknames as a Hello Pro Kenshuusei member.
- Name: Kanemitsu Ruru (金光留々)
- Nicknames: Ruu-tan (るーたん), Ruru-chan (るるちゃん), Ruru (るる)
- Birthdate: September 2, 2005
- Birthplace: Tokyo, Japan
- Blood Type: O
- Height: 153 cm (5 ft 0.2 in)?
- Western Zodiac: Virgo
- Eastern Zodiac: Rooster
- Hello! Project Status:
- 2017-12-04: Hello Pro Kenshuusei member
- 2019-12-29: Left
- UP-FRONT PROMOTION Status:
- 2017-12-04: Member
- 2019-12-29: Left
- Hello! Project Groups:
- [2011.06.18~19] Peterpan the Musical
- [2014.08.19] Nicky
- [2015.08.14~16] Jackie!
- [2016.08.20~23] Maria to Midori no Princess
- [2017.08.04~06] Boukenshatachi ~Kono Umi no Kanata e~
-  Nettai Danshi
-  Shoujotachi no Ketsudan ~Mitchaku!! Hello! Project 20 Shuunen Audition~ (AbemaTV)
- [2017-2019] Hello! Project Station
- She wanted to meet Makino Maria.
- She wanted to move from musicals into becoming an idol.
- She previously auditioned for Morning Musume, and her dream is to join the group.
- She became a fan of Morning Musume after her sister introduced her to the 2012 Hello! Project drama Suugaku♥Joshi Gakuen, and she saw the cute Michishige Sayumi.
- Her room was shown on episode 7 of Shoujotachi no Ketsudan ~Mitchaku!! Hello! Project 20 Shuunen Audition~ to be decorated with Morning Musume goods.
- She is bad with sweets (although she can eat gummies).
- For her birthday instead of a cake, she eats jelly.
- Ruru's weak point is haunted houses.
- Gallery:Kanemitsu Ruru
- List:Kanemitsu Ruru Discography Featured In
- List:Kanemitsu Ruru Concert & Event Appearances
- Shoujotachi no Ketsudan ~Micchaku!! Hello! Project 20 Shuunen Audition~ Episode #1. AbemaTV. 2017-11-13.
- Shoujotachi no Ketsudan ~Micchaku!! Hello! Project 20 Shuunen Audition~ Episode #6. AbemaTV. 2017-12-04.
- "ハロプロ研修生に新メンバーが加入！" (in Japanese). Hello! Project. 2017-12-11.
- "「熱帯男子」ビジュアル解禁、日替わり島民ゲストに初演キャストら" (in Japanese). natalie. 2017-12-31.
- "ハロプロ研修生の新体制について" (in Japanese). Hello! Project. 2019-07-11.
- "ハロプロ研修生の新体制について" (in Japanese). UP-FC. 2019-07-11.
- "Hello! Project COUNTDOWN PARTY 2019 ～ GOOD BYE & HELLO ! ～" (in Japanese). Hello! Project. 2019-12-29. (Archived)
- BOMB September 2018 Issue.