Blue Matter

 is a Fantasy Webtoon Original created by forgotuser; it updates every Wednesday.

Synopsis
''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.''