- Birth Name: Haga Akane (羽賀朱音)
- Nicknames: Akanechin (あかねちん), Hagachan (はがちゃん)
- Date of Birth: March 7, 2002
- Place of Birth: Nagano, Japan
- Blood Type: O
- Height: 163.5cm
- Hobbies: Singing, watching YouTube videos, reading manga
- Specialty: Calligraphy (7th Dan)
- Favorite Food: Mom's cheeseburger, cherry tomato
- Least Favorite Food: Milk, seafood
- Favorite Color: Violet
- Favorite Subject: Art
- Looks Up To: Kudo Haruka, Miyamoto Karin, Fukuda Kanon, Tanaka Reina, Takagi Sayuki, Oda Sakura
- Hello! Project groups:
Haga Akane was first introduced as a member of Hello! Project in the Hello! Pro Kenshuusei through a video on September 22, 2013. Prior to joining she participated in the Morning Musume 11th generation audition, and became a finalist in the first Morning Musume 12th generation audition.
She was chosen from Morning Musume's 12th generation "Golden Audition" to join the group on September 30, 2014, along with Ogata Haruna, Nonaka Miki, and Makino Maria. Haga's image color was officially changed from light orange to orange, the color formerly held by Akane's respected 10th generation senior Kudo Haruka, on June 14, 2019.
- [2016.08.xx] Greeting ~Haga Akane~ (Greeting~羽賀朱音~)
- [2017.03.07] Haga Akane Mini Photobook "Greeting-Photobook-" (羽賀朱音ミニ写真集「Greeting-Photobook-」)
- [2016.12.12] Morning Musume 12th Generation Official Book (モーニング娘。12期 オフィシャルブック)
- TV Programs
- [2015–2019] The Girls Live
- [2015–] Hello! Station (ハロ！ステ)
- [2015–2017] 12ki Relay (12期リレー) (fan club exclusive)
-  Hello Pro no Oshigoto Challenge! (ハロプロのお仕事チャレンジ!)
-  TRIANGLE -Trine Angle- (TRIANGLE -トラインアングル-)
-  Zoku 11-nin Iru! Higashi no Chihei, Nishi no Towa (続・11人いる!東の地平・西の永遠)
-  Pharaoh no Haka (ファラオの墓)
-  Pharaoh no Haka ~Hebi Ou Senferu~ (ファラオの墓 ~蛇王・スネフェル~)
- [2015–2017] Morning Musume '15 12ki Nikki (モーニング娘。'15 12期日記)
- [2017–] Morning Musume '17 no Morning Diary (モーニング娘。'17のモーニングダイアリー)
- [2017–] marukome Morning Misoshiru Nomou yo! (marukome モーニングみそ汁 飲もうよ!)
- Was a finalist in the Morning Musume 12th Generation "Mirai Shoujo" Audition.
- Participated in the Morning Musume 11th Genertation ~Suppin Utahime~ Audition.
- Has said she has confidence that she could change the future for Morning Musume.
- Her favorite Hello! Project songs are "Pyocopyoco Ultra", "Tokimeku Tokimeke", and "Be Alive" by Morning Musume.
- Is the first Morning Musume member from Nagano.
- Favorite sport is golf.
- Her motto is "kiwametai ongaku no sekai" (極めたい音楽の世界; A world of ultimate music).
- Wrote in a magazine that her goal is to give a performance that touches people.
- Thinks her charm point is her long eyelashes.
- Said the thing she wants to do most as part of Morning Musume is participate in a stage play.
- Before debut the song she wanted to dance the most with Morning Musume was "Password is 0".
- Likes the manga "Asari-chan".
- Watches the American television shows "The Thundermans" and "Sesame Street" on E Television.
- Checks the blogs of her seniors in Hello! Project before bed, starting with Kudo Haruka and Takagi Sayuki.
- Fell in love with Morning Musume in 4th grade around the release of "Maji Desu ka Ska!".
- Once won Best in Show at her prefecture's calligraphy exhibition.
- Her favorite genre of music is Hello! Project songs.