Kohara Haruka was a member of SDN48's 1st Generation.
Team History
- 2007.10.06 - Joined AKB48 as a Kenkyuusei
- 2009.01.24 - Promoted to Team B
- 2009.08.23 - Transferred to Team K (2009 Team Shuffle), but didn't debut
- 2009.09.22 - Transferred to SDN48 as a 1st Generation Understudy (Debut: April, 2010)
- 2010.05.15 - Promoted to SDN48 1st Generation
- 2012.03.31 - Graduated from SDN48's 1st Generation (SDN48 Graduation Concert "NEXT ENCORE")
AKB48 Senbatsu Elections
- 1st Senbatsu Election - Not Ranked
- 2nd Senbatsu Election - Not Ranked
- 3rd Senbatsu Election - Didn't Participate
- 4th Senbatsu Election - Didn't Participate
- 5th Senbatsu Election - Not Ranked
Singles Participation
SDN48 A-Sides
- GAGAGA
- Ai, Chuseyo
- MIN・MIN・MIN
- Kudokinagara Azabu Juuban duet with Mino Monta (WCenter with Sato Yukari)
- Makeoshimi Congratulation
SDN48 B-Sides
- Kodoku na Runner (GAGAGA)
- Everyday, Katyusha (SDN48 ver.) (MIN・MIN・MIN)
- Owaranai Encore (Makeoshimi Congratulation)
AKB48 B-Sides
- Oogoe Diamond (Kenkyuusei ver.) (Oogoe Diamond)
- Shonichi (Baby! Baby! Baby!)
- Shonichi (Namida Surprise!)
Albums Participation
AKB48 Albums
Units
Stage Units
- RS1 (Tadaima Renaichuu)
- Haru ga Kuru Made
- B4 (Idol no Yoake)
- Tengoku Yarou
- H2 (Yume wo Shinaseru Wake ni Ikanai)
- Kioku no Dilemma (2nd Unit + Revival)
Concert Units
Nenwasure Kanshasai Shuffle Sumaze, AKB! SKE mo Yoroshiku ne
AKB48 Super Festival at Nissan Stadium
Media Appearances
Radio Shows
- Aigaku Ooedo Aidoru Gakuen (2010/2011)
- Idol Collections (2010)
Variety Shows
- SDN48+10! (2010)
- AKBINGO!
Trivia
- Was ranked 9th in the fan election for SDN48's first single
- Began working as a gravure idol in 2013, but retired after releasing one DVD on November 22, 2014.
- In 2018, she joined fellow ex-SDN48 members Akita Kazue, Okochi Misa, Kimoto Yuki, Fukuda Akane, and Fujikoso Yumi to form a new idol group, R. They released their debut single on March 10, 2019.
- On May 25, 2021, she announced that she had married actor Ogasawara Ken and had given birth to their first child.