En emisión manhwa
Solo el manhwa está indexado; sin novela conocida aún.
Blue Matter
Society has risen into the sky with beings known as Angels. Capable of wielding a powerful element, Angels use this incredible ability to combat the threat of mindless killers — Demons. But one choice may change the course of the world when Shinsa, a completely cognizant Demon, is spared by the high-ranking Angel, Astler Leidt.