The series features a diverse cast of allies and antagonists:
: An optimistic, silver-haired 18-year-old who inspires deep loyalty despite her lack of combat skills. Fena: Pirate Princess
: A high-ranking Royal Navy officer and the primary antagonist, driven by an obsessive love for Fena's late mother, Helena. The series features a diverse cast of allies
: A specialized crew including Shitan (archer), Karin (technologist/sniper), and twins Enju and Kaede (spear-wielders). and twins Enju and Kaede (spear-wielders).