Koishi Kumiko
Koishi kumiko2015
Koishi Kumiko, 2015
Nickname Koishichan (小石ちゃん?)
Kumichan (くみちゃん?)
Birthdate August 4, 1995 (1995-08-04) (age 22)
Birthplace Hyogo, Japan
Bloodtype B
Zodiac Sign Leo Leo
Height 160cm
Professional Information
Genres J-Pop
Occupation Singer, Idol, Actress
Years Active 2013-present
(4 years)
Agency Pythagoras/AKS
Group SKE48
Team SKE48 Graduates
Generation 1st Generation Draft Members
Associated Acts SKE48, AKB48, HKT48, Nogizaka46, NMB48, JKT48, SNH48
Blog 小石公美子 (SKE48 Official Blog)
Graduated March 21, 2016

Koishi Kumiko (小石公美子?) was a member of SKE48's Team E.

Team History

AKB48 Senbatsu Election


  • Her hobbies are Korean language, music appreciation, and traveling alone.
  • Considers her special skills to be dancing, goldfish scooping, and saying tongue twisters.
  • Aspires to be like Takahashi Minami.
  • She was Team E's 1st choice at the draft.
    • Her audition number was 28.