After centuries of demon-enforced isolation, a shattered magical barrier opens up new possibilities for kingdoms eager to venture beyond their confined realm. In the midst of this newfound freedom, a peace delegation is formed to connect with the inhabitants of the long-lost world. Meanwhile, the renowned sorceress Lina Inverse is approached by a mysterious figure, Filia ul Copt, who seeks the assistance of Lina and her companions for a significant mission in the uncharted territories. To test their mettle, Filia challenges them to a formidable dragon duel within the city. Once they prove their prowess, the group embarks on a journey to these unfamiliar lands, braving numerous escapades and a foreboding prophecy that looms over their path.