Kakumeiki Valvrave - Ryuusei no Valkyrie Manga Summary
A side-story of Kakumeiki Valvrave centered on the school idol Saki Rukino, telling her story from both past and present points of view.> Spin-off of Kakumeiki Valvrave( http://mangapark.com/search?q=kakumeiki-valvrave )