- Birth Name: Miyamoto Karin (宮本佳林)
- Nickname: Karin (カリン)
- Date of Birth: December 1, 1998
- Place of Birth: Chiba, Japan
- Blood Type: O
- Height: 154cm
- Specialty: Badminton, yoga poses, braiding
- Hobby: Home karaoke, playing with her cats
- Dislikes: Drawing
- Favorite Food: Strawberries, fruits, sea trout sushi
- Favorite Color: Baby pink, grape color
- Favorite Subject: Music
- Looks Up To: Okai Chisato, Niigaki Risa, Sayashi Riho
- Hello! Project groups:
- [2013.03.20] Kopink's! Melodies ~star chart~ (コピンクス！メロディーズ～star chart～) (Kopink)
- [2011.12.21] Carina Notte (カリーナノッテ) (Kopink)
- [2012.08.29] Saikou Shikando (最高視感度) (Kopink)
- [2012.12.05] Usagi tocome (兎tocome) (Kopink)
- [2013.01.31] Rebirth (リバース) (Kopink)
- [2019.10.18] Doushite Bokura wa Yaruki ga Nai no ka (どうして僕らにはやる気がないのか)
- [2014.03.xx] Greeting ~Miyamoto Karin~ (Greeting ~宮本佳林~)
- [2015.07.22] Karin wa 16sai (かりんは16歳)
- [2016.11.23] bluest
- [2018.12.26] KARIN=KARIN (佳林=KARIN)
- [2014.06.12] Karin (佳林)
- [2015.05.27] Karin sixteen
- [2016.10.21] Sun Flower
- [2018.12.01] Kakusei -KAKUSEI- (覚醒 -KAKUSEI-)
- [2014.02.27] Juice=Juice 1st OFFICIAL PHOTO BOOK (Miyazaki Yuka, Kanazawa Tomoko, Takagi Sayuki, Miyamoto Karin, Uemura Akari)
- [2014.06.xx] Baseball Game Magazine Vol.12 (Cover)
- [2014.07.xx] UTB+ Vol.20 (Cover)
-  Hoshisuna no Shima no Chiisana Tenshi ~Mermaid Smile~ (星砂の島のちいさな天使～マーメイド スマイル)
- TV Dramas
-  Suugaku♥Joushi Gakuen (数学♥女子学園)
-  Budokan (武道館) (as Hidaka Aiko)
-  Yuganda Hamon (歪んだ波紋)
- TV Programs
-  Asonde Manabu (アソンデマナブ)
- [2010–2013; 2015] PINK!SS (ピンクス) (voice of Pink-chan; MC)
-  Hello! SATOYAMA Life (ハロー！ＳＡＴＯＹＡＭＡライフ)
- [2014–2019] The Girls Live
-  S-cene
- [2019–] AI・DOL PROJECT
-  Hello Pro! TOKYO Sanpo (ハロプロ！TOKYO散歩)
- Net Dramas
- Net Programs
-  Hello Pro Kenshuusei no Tadaima Kenshuuchuu! (ハロプロ研修生のただ今研修中!)
- [2013–] Hello! Station (ハロ！ステ)
-  Hello Pro no Oshigoto Challenge! (ハロプロのお仕事チャレンジ!)
-  Hello Pro Kouhaku Taiko THE☆BATTLE 2019 (ハロプロ紅白対抗 ザ☆バトル2019)
-  Hello Pro ONExONE (ハロプロ ONE×ONE)
-  Hello Pro no Oshigoto Challenge! 2 (ハロプロのお仕事チャレンジ!2)
-  Ojigi de SHAPE-UP! (おじぎでシェイプアップ！)
-  Kaibutsu no Kodomo
-  Geki Haro Dai 9 Kai Kouen San Okuen Shoujo~Karei Naru Nanain~ (劇団ゲキハロ第9回公演 『三億円少女』～華麗なる七人～)
-  Ima ga Itsuka ni Naru Maeni (今がいつかになる前に)
-  1974 (Ikunayo) (1974(イクナヨ))
-  Reborn ~Inochi no Audition~ (リボーン～命のオーディション～) (as Genghis Khan)
-  B・B~bumpy buddy~
-  Sugar Spot (シュガースポット)
-  Moshimo Kokumin ga Shusho o Erandara (もしも国民が首相を選んだら)
-  Musical Koisuru Hello Kitty (ミュージカル恋するハローキティ)
-  JK Ninja Girl (JKニンジャガール) (guest appearance)
-  Time Repeat ~Eien ni Kimi wo Omou~ (タイムリピート~永遠に君を想う~)
- [2013–] We are Juice=Juice
- Her Juice=Juice image color and flavor is grape.
- She was first introduced at the 2008 Hello! Project Shinjin Kouen 11gatsu ~Yokohama JUMP!~ concert in November 2008 as a winner of the Up-Front Egg Audition.
- Eats bread for breakfast.
- Has a habit of getting excited easily.
- Her favorite spot is the loft at her room.
- She has a 7 year old cat named Jasmine and an 8 year old cat named Choco.
- She participated in the 2011 S/mileage auditions, but failed.
- She is a fan of Hello! Project group Morning Musume, and S/mileage.
- On a rainy day she would laze around with her cat.
- She would sing the song "Hare Ame Nochi Suki" by Morning Musume Sakuragumi on a rainy day.
- Said her dream as an idol is to debut within Hello! Project and to be able to sing in various languages.
- She participated in the Morning Musume 11th Generation ~Suppin Utahime~ Audition, but failed.
- There was an introduction page in the new Hello! Channel vol.9, where Miyamoto said that her favorite group within Hello! Project is Morning Musume.
- She is an only child, and lives with her grandparents.
- Her best sport is badminton.
- She covered "Wakuteka Take a Chance" as Suzuki Kanon in Team Okai.
- She looks up to the singer Matsuda Seiko.
- Decided she wanted to join Hello! Project after she heard °C-ute's song on "Kirarin Revolution" and began to learn more about idols and Hello! Project.
- Her mother suggested the Hello Pro Egg audition; Karin purchased °C-ute's MV collection and practiced "Ooki na Ai de Motenashite" to prepare.
- Says she won't lose to anyone in being hyper and bouncing around on stage.
- Prior to being chosen to debut in Juice=Juice, after failing multiple auditions, Karin planned to leave Hello Pro Egg by her last year of middle school.
- Said her favorite Hello! Project songs are "Hare Ame Nochi Suki" by Morning Musume Sakuragumi, "Ooki na Ai de Motenashite" by °C-ute, and "Resonant Blue" by Morning Musume.
- Karin went on hiatus starting July 25, 2017 after having difficulties with her voice and subsequently being diagnosed with functional dysphonia. After absence for treatment she made a tentative return to performing at the end of the following month on August 31st with a full return planned providing she did well.
- Karin announced her graduation from Juice=Juice and Hello! Project on February 10, 2020 through the official website and a special video upload to the Hello! Project Station YouTube channel, stating she would continue as a soloist. She revealed she had been considering her graduation since fall 2018 and had discovered many things she had an interest in, including DIY and interior design, and wanting to learn about and share those things over SNS. Her graduation was to take place at the end of the "Juice=Juice CONCERT TOUR 2020 Spring" with solo activities beginning in fall 2020. Within her announcements she also discussed wanting to find her own ways of expression to utilize in her performances, and hoping she would be able to continue working with Juice=Juice and Hello! Project members in some way even after graduating.