This will probably be deleted from 유튜브 for copyright soon, but I will post it while it lasts. This is a smashing opening from an otherwise mediocre anime, Aldnoah.Zero.
This is my 초 가장 좋아하는 Kalafina song. Its instrumental resembles that of Sayaka Miki's character theme from the Madoka franchise, likely because they originate from the same composer.