ルミナス by ClariS

"Luminous" (ルミナス, Ruminasu) is a pop song by the Japanese duo and idol unit ClariS, written by Shō Watanabe. It was released as the unit's sixth single on October 10, 2012 by SME Records. The song was used as the opening theme to the first two Puella Magi Madoka Magica anime films. A music video was produced for "Luminous". The single peaked at No. 4 on Japan's weekly Oricon singles chart, and was later awarded a Gold Disc by the Recording Industry Association of Japan for having exceeded 100,000 copies shipped in a single year.