In June, Sekine joined Hello! Project as a member of Hello Pro Egg when she passed the auditions alongside twenty-nine other girls.
In Mano Erina's single Haru no Arashi, Sekine was the backup dancer along with 3 other Hello Pro Eggs.
In April, it was announced Sekine would be a regular on the TV show Test no Hanamichi.
On May 5, Sekine and Arai Manami starred in the stage play Shiritsu Guriguri Gakuen (私立グリグリ学園).
Sekine had a small role in a 2 part horror movie titled Ada ~ADA~. The movie was directed by Koji Shiraishi and was released on July 13.
On July 4, it was announced that Sekine would be a part of a group titled @JAM ALLSTARS. The group sang the theme song for @JAM EXPO 2014 and a CD was released for the song.
On April 7, she held the Sekine Azusa Solo LIVE ~Seichou no Iro~ at Hatsudai the DOORS.
On December 17, the group held the concert "Up Up Girls (Kakko Kari) FIVE SOUL FOREVER" in Zepp Tokyo, which was the last live concert to feature Furukawa Konatsu, Mori Saki, Saho Akari, and Arai Manami. During the concert, it was announced that she has changed her member color from orange to red.
On September 29, it was announced that Sekine Azusa had been diagnosed with cervical spondylotic radiculopathy at a hospital and needed immediate medical treatment. This was due to her complaining of neck pain and subsequently missing a scheduled concert appearance. She will be absent from all live performances through the end of October.
- Name: Sekine Azusa (関根梓)
- Nickname: Sekkii (せっきー)
- Birthdate: June 14, 1996
- Birthplace: Nagano, Japan
- Blood Type: AB
- Height: 153.5 cm (5 ft 0.4 in)?
- Shoe Size: 23cm
- Western Zodiac: Gemini
- Eastern Zodiac: Rat
- Hello! Project Status:
- 2004-06-20: Hello Pro Egg member
- 2011-03-09: Graduated
- UP-FRONT GROUP Status:
- Up Up Girls (Kakko Kari) Color:
- Orange (2011-2020)
- Red (2020-present)
- Hello! Project Groups:
- Hello Pro Egg (2004–2011)
- Concert Units:
- Wonderful Hearts (2006-2010)
- Other Groups:
- [2012.06.10] Haikei shiryoshu 1 gakko kyoshitsu (Manga x anime kore 1 satsu!) (背景資料集1 学校・教室 (マンガ×アニメ これ1冊!)) (Sato Ayano, Saho Akari, Sekine Azusa, Arai Manami)
- [2013.07.13] Ada ~ADA~ (讐 ～ADA～)
- [2011-2015] Up-Front Girls
- [2012-2016] Test no Hanamichi (テストの花道) (Regular)
- [2014-2019] The Girls Live
-  Mano Erina - Hajimete no Keiken (はじめての経験) (as back dancer)
-  Mano Erina - Haru no Arashi (春の嵐) (as back dancer)
-  Mano Erina - Seishun no Serenade (青春のセレナーデ) (as back dancer)
- [2012.05.05] Shiritsu Guriguri Gakuen (私立グリグリ学園)
- She and Okada Yui were the first Hello! Project members to be left handed.
- She eats rice for breakfast.
- She has a habit of resting her chin in her hands.
- She was the second youngest member in Up Up Girls (Kakko Kari) until late 2020.
- She cried when Saho Akari was announced to be a new member of Up Up Girls (Kakko Kari)
|Oldest member of Up Up Girls (Kakko Kari)
January 1, 2021 – Present
|Leader of Up Up Girls (Kakko Kari)
February 28, 2021 – Present
- Official Up Up Girls (Kakko Kari) Profile
- Official Twitter
- Official Instagram
- Official Showroom
- Wikipedia Article
|Hello Pro Kenshuusei|