Oshima Ryoka, 2017
|Birthdate||October 21, 1998|
|Occupation||Singer, Idol, Actress|
|Generation||13th Generation AKB48|
|Associated Acts||AKB48, SKE48, NMB48, HKT48, Nogizaka46, SNH48, JKT48|
|Graduated||June 8, 2017|
- Joined AKB48 as a Kenkyuusei on September, 2011
- Promoted to Team A on August 24, 2012 (Tokyo Dome Team Shuffle)
- 02.24.2014 - Transferred to Team B (AKB48 Group Daisokaku Matsuri)
- 06.08.2017 - Graduated from AKB48 Team B (Announcement: March 23, 2017 | Last Handshake Event: June 4, 2017)
September 24: Passed AKB48's 13th generation audution.
December 8: Performing Aitakatta with all of AKB48's 13th gen member as Debut in AKB48 6th Theater Anniversary Concert
July 3: Being member of Yokoyama Team A
- NEW SHIP (GIVE ME FIVE!)
- Ano Hi no Fuurin (Gingham Check)
- Tsugi no Season (UZA)
- Kodoku na Hoshizora (UZA)
- Watashitachi no Reason (Eien Pressure)
- Ruby (So long!)
- Waiting Room (So long!)
- Bara no Kajitsu (Sayonara Crawl)
- Ikiru koto (Sayonara Crawl)
- Kiss made Countdown (Heart Electric)
- Himitsu no Diary (Mae Shika Mukanee)
- B Garden (Labrador Retriever)
- Chewing Gum no Aji ga Naku Naru Made (Kokoro no Placard)
- Loneliness Club (Kibouteki Refrain)
- Yankee Rock (Green Flash)
- Summer side (Bokutachi wa Tatakawanai)
- Kimi wo Kimi wo Kimi wo... (Kuchibiru ni Be My Baby)
- Madonna no Sentaku (Kuchibiru ni Be My Baby)
- Kin no Hane wo Motsu Hito yo (Kuchibiru ni Be My Baby)
- LA LA LA Message (Kimi wa Melody)
- Koi wo Suru to Baka wo Miru (Tsubasa wa Iranai)
- TBA (LOVE TRIP/Shiawase wo Wakenasai)
B3 Revival (Pajama Drive)
SS2 (Seishun wa mada owaranai)
B6 (Tadaima Renaichuu)
Concert Shuffle Units
- She was promoted on the Tokyo Dome team shuffle.
- Her desired job is to be an actress who can work in varied kinds of dramas.
- The member she admires the most is Oshima Yuko.
- Her height was 145cm on her 1st promotional interview which she considers as her "charm point".
- She was named the "ace" of the 13th generation.
- Considered the leader of the ksgk (kusogaki, "annoying kids"). The ksgk also includes Kawaei Rina, Tano Yuka, and Takahashi Juri.
- She loves to play pranks.
- She is very close with fellow 13th generation member Aigasa Moe. They went to elementary school together, and were best friends for four years before auditioning for AKB48.
- Both used to dance Oogoe Diamond together and pretend to be AKB48 members.