Tales of Vesperia is an action role-playing game and it is the tenth mainline entry in the Tales seriesVesperia is set in Terca Lumireis, a world powered by an energy source called aer, regulated by devices called Blastia. The story follows Yuri Lowell, a former Imperial soldier who forms the Brave Vesperia guild to aid Estelle, a noblewoman. As they explore the world, they face factions with conflicting plans for Blastia resources, and Yuri must confront his friend and former comrade, Flynn.