Oshima Haruka

 (大島遥華) is a former Japanese idol, a former founding member of BOKU ha KIMI no KAKERA. under the stage name HARUKA SUKKANEN, and a former member of KATA☆CHU and Item wa Teru Teru Nomi.

She joined KATA☆CHU on December 17, 2015, and graduated on March 21, 2021.

She graduated from BOKU ha KIMI no KAKERA. on March 21, 2021.

She joined Item wa Teru Teru Nomi on March 21, 2021. She graduated from the group on June 25, 2023.

Digital Singles

 * Amazora Item
 * June Bride
 * DASH!!!
 * UWABE Dake no KIZUNA?
 * Shougeki Teki Kanpai no News
 * Sakura Vacation
 * Gyakushuu Parade
 * Denkou Sekka no www Fire~
 * Shinmai Teru Teru Sanjou
 * Toiro no Kiseki
 * Maigo no BUZZ Sengen
 * Natsu Iro Coconut I Love you de

Singles

 * We are "FreeK"

Digital Singles

 * Doromamire Running!!
 * Party“CHU”Night
 * Lemon Soda!!!
 * Sunrise
 * Restart
 * Google na Kanjiro!
 * Monologue
 * Popping Summer

Video Releases

 * KATA☆CHU 2nd ONE MAN LIVE Tobikose! Shinjuku ReNY ~Utae! Odore! Sawage!~
 * KATA☆CHU 3rd ONE MAN Revenge! Tsumari wa Tanjun ni Shinjuku ReNY wo Tobikoshitain Desu!
 * KATA☆CHU 4th ONE MAN Chikyuu Onpuku Danka Yori mo Majide Atsui Natsu

Lyrics

 * Natsu Iro Coconut I Love You de - Teru Teru 3