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How evolution works: Eligible units use materials reported from Story stages, Daily Challenges, Raids, Legend Stages, and missions to unlock advanced forms, increased base stats, and updated skill sets. Public launch guides document evolution forms for Secrets (Madaro Edo Tensei, Valcrad Unleashed, Cursed Lover Pure Love) and several Mythics (including Bluma Data Analyst and Bon Purgatory). Remnants (Azure, Violet, Radiant, Prismatic) and unit-specific stage drops form the reported recipe components. Exact per-unit ingredient formulas, Gold/Yen fees, and drop percentages are unpublished by developers — your selected unit's live in-game evolution panel is the ultimate authority. Checked 2026-08-20.