In a world of adventurers and magic lies Naral Island. Every generation, a Demon Lord rises to plague the land, and every generation, a Hero is born to subdue him. For countless centuries, the cycle has repeated with no end in sight. The latest Hero, Juulia "Yusha" Charldetto, has almost completed her valiant campaign alongside her party members: responsible priest Seiran "Seira" Élénoir, enigmatic mage Meiza "Mei" Endust, and hyper-energetic warrior Fai Fai.