Oshima Haruka

 (大島遥華) is a Japanese idol and a member of KATA☆CHU.

She joined the group on December 17, 2015.

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