Ruka Endō is a Japanese idol working under Akihabara's DearStage. She is a member of the idol groups STAR☆ANIS and AIKATSU☆STARS!, and is Akari Ōzora's singing voice actress as part of both groups, unlike the other members of STAR☆ANIS.
- She was born on 9 September, 1990.
- STAR☆ANIS member credited as "Ruka (るか)". (Akari Ōzora (singing voice))
- AIKATSU☆STARS! member credited as "Ruka (るか)". (Akari Ōzora (singing voice))
- Transferred from Alae Angeli to Lantis on 13 April, 2014.
- Began her career as a child actress.
- She is one of two STAR☆ANIS members to be part of both groups, the other member being Mona Tomoyama.
- Unlike Mona, Ruka voices the same character as part of both groups.
- Ruka is considered the 'group leader' of AIKATSU☆STARS! due to her voicing the main protagonist, unlike in STAR☆ANIS which is lead by Ichigo's singing voice actress, Waka.