Between her guardians Nelly and Chris finally tying the knot and her job as an apothecary, life has been smooth sailing for Sara. One day, however, Chris decides it's time for her final exam and instructs her to craft a supreme potion, the ingredients for which can only be found deep inside a dungeon. Sara ventures into the dungeon with her best friend Allen and his partner Kuntz, but Allen gets caught up in a terrible cave-in. Sara manages to craft the supreme potion then and there to save Allen's life, but the incident creates a rift between them deeper than any before. How will Sara handle her first big fight in her new life?