The culmination of the Mystia saga, Mystia 3 acts as a prequel to the previous two games and explores the backstory of the King's Sword artifact at the centre of Mystia 2's plot. It follows Vimal and Gauri, the parents of Mystia's Mina, who are asked by the king of North Mystia to retrieve the King's Sword and use it to defeat the Demon King who threatens all of Mystia. Their story unfolds over the course of five chapters in a journey much longer than the previous two games. This entry features significantly enhanced systems compared to previous games in the series, with a new vertically-scrolling battlefield that spans both the land and the sky. The new game plus feature from the previous game returns as well, offering players new opportunities to try things after completing the game once. This game also introduces detailed event graphics in key story scenes.