Rune Blader!

is a Japanese light novel series written by Junichi Kamino, with illustrations by Keisuke Ogawa. The series began publication on July 10, 2004 by ASCII Media Works under their Dengeki Bunko publishing imprint.

Synopsis
Awakened as a magic swordsman, Midir declared complete independence from Melchior months after he and Anne dismissed the invaders of "The Ark" Melchior. However, the power of the "Ark" is too powerful to compete with Midir alone. Globe and Anne traveled around the ground cities as Midir's envoy to call for unity. Eventually, they hear rumors about the city of Prague, where the two governments continue a civil war over a magical drug plant that sleeps underground. Unable to overlook the innocent civilian being killed, Globe and Anne head for Prague ...