The Phillet Company, determined to complete the final stage of the Demon Sword Project, has taken Elfin? prisoner. Riselia and the others attempt a desperate rescue, but it may already be too lateàMeanwhile, Leonis faces the Lord of Beasts, and danger finds its way to the once-safe halls of Excalibur Academy. As the eighteenth platoon works to free Elfin?, Leonis must make a difficult decision.