Ankoku Densetsu Crystania

is the first volume of the Crystania Series light novel series, written by Hide Shirai and Illustrated by Jun Suemi. It was released under the Dengeki Bunko Imprint in December 2000.

Synopsis
The mercenary corps, Beast Fang Ruth, inherited the method of breaking the seal and led the arrival of a new era to Christania, the land controlled by the beast. With the seal broken, the king who controls the demon, who was once competing for victory in this land but was being purified, will be released into the field again. There is no place to return, and the Demon King plots a rebellion to reign over the land of Verdia. Around the same time. Ruth and his party were heading for the royal capital of the Verdia Empire, ruled by his nemesis, the Dark People. Not knowing their role or even their purpose, they are once again caught up in the swells of a great era. The people of the beast, the people of darkness, the new people, and the demons. The future of all who live in that land depends on the decisions of Ruth and others.