Haruna Hikaru

 (榛名ひかる) is a Japanese idol, a member of JAPANARIZM, and a former founding member of BUGS MART, Kamu Kamu Vampire, and Amatsuwotome.

She became a founding member of Kamu Kamu Vampire from March 2020, until their disbandment on August 27, 2021.

She then became a founding member of BUGS MART from April 12, 2022, until their disbandment on December 26, 2022.

She joined JAPANARIZM on January 29, 2023.

She is also a cast member at the Mazeroom idol cafe.