With a dark background and the title of queen of the demon world, how should she choose when facing friends and enemies? Is it to turn conflicts into friendship, or to kill them mercilessly? A rare sunwalker for thousands of years, a holy twelve-winged angel, the ruler of the demon world, the legendary Hell's Angel... How many identities does she have? The melody of the dark night slowly sounds, and what is about to be staged is a blood family love song of joys and sorrows...