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Danbooru

official_alternate_costume worn by others

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Official Alternate Costume wiki:

  • Only use this for costumes the character has worn themselves, and not other character(s) in the same series.
    • If a character has not worn it, use alternate costume or cosplay instead as applicable.

Had the same question awhile ago, cause someone was tagging it on Arknights cosplays of skins, luckily the wiki already covers it.

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