In all the world, there have only ever been seven dragons, creatures of incalculable strength and wisdom with magical powers beyond those of even the greatest wizard. Some say the dragons are as old as time. Others say they will live forever. They are wrong. A dragon has died. Even worse: it was murdered.

If the killer is not found soon, a cataclysmic war will break out that could lead to the deaths of tens of thousands of people. Unless, of course, the remaining six dragons decide to take revenge first.

Now three heroes must discover who slew the dragon: Major Heathrow Kristoff, the Wind Knight, a fighter of unmatched agility and swordsmanship; Captain Reize Risukasse, a beautiful young woman with deadly combat skills; and Edwarth Thizwerks Markwhistle, a representative of the powerful Seven Seas Alliance, who hides his features behind a mysterious mask.

Together they make a formidable team. But even if they manage to catch the killer in time, how can they possibly hope to defeat an enemy powerful enough to murder a dragon?

Written by Kouhei Kadono and Illustrated by Kazuma Kaneko.