Hikari Saitou was just an ordinary student... until a fateful encounter with Magical Girl Aquamarine and a fairy named Lala transformed her into Magical Girl Opal! Now her days of studying at university are spent fighting against the evil organization, Cynthia, who are hell-bent on taking over the Earth. In this RPG, you play as Hikari as she protects Mikamai Town from the evil forces of Cynthia.