The core cast consists of original characters including Viktor and Isla von Duerer as siblings with knightly backgrounds, Rutger Arendt as an orphan adventurer, Nina Friede as a mercenary later revealed as a homunculus, and Lenja as a shy demihuman from the Welleks race. All receive in-universe justifications rather than any alterations to established franchise figures for external reasons. The narrative explores memory, alchemy's consequences, and personal judgment through strictly platonic side quests that focus on character backstories and bonds, with no romance system or LGBTQ+ elements present.

Japanese developer Koei Tecmo/Gust prioritized traditional anime-style appeal and global marketability via design choices such as Yumia's cool, acrobatic aesthetic, without DEI consultancy, pronoun options, or activist intent. This approach keeps thematic centrality free of identity politics, systemic oppression narratives, or critiques of traditional norms, resulting in minimal ideological content overall.