Otsuka Aina
Otsuka Aina, 2019
Nicknames Tsukapon (つかぽん?)
Birth Info
Born April 3, 1998 (1998-04-03) (age 21)
Origin Tokyo, Japan
Blood Type O
Zodiac Sign Aries Aries
Height 153cm
Professional Info
Genres J-Pop
Occupation Idol, singer, actress, model
Years Active 2011–2018
Agency UP-FRONT AGENCY (2011-2012)
Label UP-FRONT WORKS (2011-2013)
Associated Acts Juice=Juice, Hello Pro Kenshuusei
Juice=Juice Info
Joined February 3, 2013
Generation 1st Generation
Member Color      Orange
Debut Single Watashi ga Iu Mae ni Dakishimenakya ne
Last Single Ten Made Nobore!
Left July 5, 2013
Time in Group 5 Months, 2 Days
Hello Pro Kenshuusei Info
Joined June 20, 2011
Generation 12th Generation
Graduated July 5, 2013
Time in Group 2 Years, 16 Days
Blog Ameblo-favicon.png HAPPY DIARY
Twitter Twitter_2012.svg @aina_otsuka43
Instagram Instagram_logo_2016.svg @inagram48
Otsuka Aina (大塚愛菜) is a former Japanese pop singer once under Hello! Project. She is a former member of Juice=Juice and Hello Pro Kenshuusei. She was first introduced as a trainee at a fanclub event in June 2011.

It was announced on July 5, 2013 that she had withdrawn from both Hello Pro Kenshuusei and Juice=Juice, subsequently leaving Hello! Project. From April 2014 to April 2018, she was active as an independent solo idol and actress.



Otsuka Aina, 2018


Otsuka Aina, April 2017


Otsuka Aina, December 2014


Otsuka Aina, August 2014


Otsuka Aina, June 2013


Otsuka Aina, May 2013


Otsuka Aina, March 2013


Otsuka Aina, February 2013


Otsuka Aina, January 2013


Otsuka Aina, December 2012


Otsuka Aina, October 2012 (Kanojo ni Naritaii!!!)


Otsuka Aina, September 2012


July 2011


Auditioning for Morning Musume's 9th generation, 2010

Early LifeEdit

Otsuka Aina was born on April 3, 1998 in Tokyo, Japan to a couple whose names are undisclosed.


In 2010, Otsuka participated in the Morning Musume 9ki Audition. She sang "EVERYDAY Zekkouchou!" by ℃-ute, and managed to become a finalist, but was not chosen to enter Morning Musume.


On June 20, as the Morning Musume 10ki Member "Genki Jirushi" Audition was occurring, it was revealed that Otsuka would be joining Hello Pro Egg alongside Ogawa Rena and Mogi Minami.[1] Later that year, she participated in the S/mileage Shin Member Boshuu! auditions, but failed to pass.

On September 11, she made her debut as a Hello Pro Egg member at the Hello Pro Egg 2011 Happyoukai ~9gatsu no Nama Tamago Show!~ concert.


In summer 2012, while practicing for a S/mileage concert, Otsuka injured her ankle and was unable to participate as a back dancer.

In September 2012, Hello Pro Kenshuusei announced their first single, Kanojo ni Naritai!!!, and Otsuka was one of the chosen Kenshuusei to sing in the song alongside Miyamoto Karin, Tanabe Nanami, Taguchi Natsumi and Hamaura Ayano.


On February 3, during the Bravo! concert in Fukuoka, it was announced that Otsuka would be debuting in a new unit called Juice=Juice, alongside Miyamoto Karin, Kanazawa Tomoko, Miyazaki Yuka, Takagi Sayuki and Uemura Akari.[2]

On June 8, it was announced that Otsuka had suffered a hip/lower back injury before the Hello Pro Kenshuusei Happyoukai 2013 ~6gatsu no Nama Tamago Show!~, afterwards she went to the doctors and was diagnosed with muscle strain/contusion on her left hip, because of this injury she was unable to sing and dance in an event on June 9. 

On June 13, Otsuka participated in an Ikebukuro Sunshine city event, due to her hip injury she remained off stage for most of the event. Towards the end of the event, Otsuka appeared on stage and Tsunku announced Juice=Juice's major debut, while the other Juice=Juice members cheered and cried, Otsuka stood still with no reaction to the news. This was her last event as a member of Juice=Juice.

On July 5, it was announced that Otsuka withdrew from both Hello Pro Kenshuusei and Juice=Juice due to issues with her contract and family.[3]

"We truly thank you for all your support for Juice=Juice.

We had repeatedly entered negotiations with Otsuka Aina herself and her family regarding her contract but, unfortunately we could not reach an agreement for the terms of the contract, and with the refusal of the contract by her family, as of July 5th, Otsuka Aina has been withdrawn from Juice=Juice as well as Hello Pro Kenshuusei.

Here after Juice=Juice will continue activities with 5 members.

To all the fans, in addition to your understanding, we ask that you please continue your support."

Otsuka's message (via blog)
"Good evening.

Some of you probably already know…

As the official announcement says, I am leaving Juice=Juice and Hello Pro Kenshuusei today.

I am so sorry that I couldn’t say a proper good-bye.

Everybody who cheered for us until this day…

Thank you so much!

Well then… bye-cha-ko. (*´ `*)"

Because of the withdrawal, Otsuka didn't receive a graduation ceremony. 

Following her departure, the Hello! Project Store was forced to stop selling items with images of Otsuka, including Juice=Juice group items. Her profile was eventually removed a few days later.


On April 20, Otsuka performed at the Shisui Deux cafe.

On April 22, Otsuka started her official Ameba blog, she mentioned in her first post that she wants to sing again, and would do her best from this point on, proceeding step-by-step. Girls News posted an article saying that Otsuka would be resuming public life.

On July 5, Otsuka held her first solo event, titled "Otsuka Aina, Otsuka de Utau ♪", at the Shisui Deux café.

2015 Edit

On April 3, she held a birthday event at Shibuya Star Lounge.

On November 15, Otsuka announced she would be releasing her first indie singles called "Dreamer", which is an original song she first performed on March 15.[4] The single will be released on November 29.[5]

2016 Edit

On November 6, Otsuka blogged that she was still supporting Juice=Juice from the shadows and wishes she could attend their Budokan concert. She, however, had her own event that evening. [6]

On November 8, Otsuka visited Budokan for Up Up Girls (Kari)'s concert. [7]


On April 3, Otsuka held a birthday live event, where she announced her sudden retirement from show business.[8]

Personal LifeEdit

When Otsuka debuted as a member of Juice=Juice in February 2013, she was a second year middle school student. She graduated from high school on March 11, 2017.[9]

Otsuka's given name, "Aina", means love (愛; ai) combined with vegetables (菜; na). It's a feminine Japanese given name and surname.

Here is a list of nicknames that was used to refer to Otsuka Aina:

  • Tsukapon (つかぽん): Official nickname, given to her since joining Hello Pro Egg.






Music VideosEdit

  • [2014] Ichijiku (イチヂク) - Jitsumami Shojo (自撮少女)


  • [2014.12.17~21] Seven Friends Seven Minutes


See AlsoEdit


External LinksEdit

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