Summary Blood Blade from Kainu Manga
Blood Blade summary: "Vampires" and "humans" have been fighting for a long time. Two tribes, tired of long unknown fights, tacitly enter into a truce. It is a foreign truce that stands for a truce but the fact is that we are secretly looking for weapons that can destroy each other! On the other hand, humans find ancient meteorites bearing a special meteorite crystal called hematite. This 'bloodstone' had a terrifying power to destroy all life on Earth, and mankind will construct a new city 'Aegis' to study ancient meteorites. The vampire tribe notices the existence of ancient meteorites and collides another asteroid to 'Aegis' to take it away, but the 'bloodstone' in the ancient meteorite has already disappeared. 'Red' caught in an explosion by a meteorite crash will survive with a 'bloodstone' in his head ...?!
