Koga Hikaru
Hikarun 2014


Hikarun (蓄光ラン)


December 16, 1994 (1994-12-16) (age 22)


Fukuoka, Japan




Singer, Actress

Years Active


Associated Acts

Ka-wa-ii!, ZYX-α

Koga Hikaru (古賀ひかる ) is a former first generation member of Ka-wa-ii!. She was also the first leader and currently the only former leader.



In November, Koga became a member of Ka-wa-ii!.

On December 1, Koga was added to ZYX-α.

On December 14, she became leader of Ka-wa-ii!


On January 27, Koga debut in Ka-wa-ii! with Go Girl Go!


Koga released her first photobook, Shiny Blue.


During a S/mileage and Ka-wa-ii! concert, Koga announced her graduation due to school.

"I, Koga Hikaru will graduate from Ka-wa-ii! on May 1, 2014.

Originally, I was supposed to graduate from Ka-wa-ii! back in 2011, when I first entered high school, but after a lot of convincing, I was able to stay in the group until I graduated from high school, at my parents' wishes.

I have loved every moment in Ka-wa-ii! ad I can't wait to see what this new generation can do!"

On May 1, Koga graduated from Ka-wa-ii! and UP Front.


  • Name: Koga Hikaru (古賀ひかる )
  • Nickname: Hikarun (蓄光ラン)
  • Birthday: December 16, 1995 (1995-12-16) (age 21)
  • Origin: Fukuoka, Japan
  • Blood Type: A
  • Western Zodiac: Sagitarius
  • Eastern Zodiac: Boar
  • Hello! Project Status:
    • 2009-11-?? Member
    • 2014-05-01 Graduated
    • 2009-11-12 Member
    • 2014-05-01 Graduated
  • Ka-wa-ii! Color: Electric Blue
  • Years in Hello! Project: 4 years
  • Favorite Flower: Sun Flower
  • Favorite Food: Tofu
  • Looks up to: Muramoto Chie, Nakamura Ayame
  • Favorite Bands: TЁЯRA, North Star
  • Hello! Project Groups:

Singles Participated In


  1. Go Girl Go!(Debut)
  2. Ai Ai Cider
  3. Zettai Bomber!
  4. Dreamer.
  5. Viva La Party!~
  6. Fly Away
  7. Daisuki Desu!
  8. Electro Love
  9. Hai, Hai, Hai!!
  10. Onigai Senpai!
  11. Take a Chance! ~MIRAI MIRAI~
  12. Rock On!~
  13. Get in SYNC/MINOR
  14. Lollipop no Ongaku
  15. Electro♥Hearts / NEW CHALLENGE
  16. Eien Idol / ROCK FROM THE DEAD
  17. Kataomoi Rotation
  18. Nee, Nee? / ORIGINAL (Last)


  • Enjoys reading Manga.
  • She is usually a minor vocalist.
  • She was glad the second generation joined, as they added a new level of vocal depth.
  • She was close friends with Hoi Daiyu.
  • She stated the day that she left Ka-wa-ii! was the day that she would become a wota of Ka-wa-ii!

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