Ruka Suirenji is a dance idol and doujinshi artist who juggles both careers with impressive skill. She's best known for her work as a performer—she can sing and dance simultaneously, which has earned her a solid fanbase—but she's equally talented behind the scenes as an artist. Under the pen name Fly Dolphin, she created the doujinshi that Nagi and Chiharu were hawking at the convention.
She's friends with Chiharu and tends to push herself hard, sometimes too hard. Fans often note her determined streak: she's insisted on getting back to work despite injuries, and she's the type to tell people she'll handle her own problems rather than burden others with them. It's that hardworking attitude that probably keeps her balancing two demanding careers in the first place.
Content compiled by AnimeList.moe from publicly available sources.
