Ruka Endou

Ruka Endou is a Japanese idol working under Akihabra'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 Oozora (singing voice))
AIKATSU☆STARS! member credited as "Ruka (るか)". (Akari Oozora (singing voice)) Transferred from Alae Angeli to Lantis on 13 April, 2014. Began her career as a child actress.

(Source: Aikatsu! Wiki)