zero - a boy saved by kurohime in his childhood. over ten years, he trained and became a gunslinger. he uses 4 guns and is known for his incredible speed. he does not use his guns for killing and only uses them to help people. zero doesn't use the magic, often is used by kurohime for to mix magic with technology. zero loves truly kurohime and in a part of series he will sacrifice his life for to save kurohime.