This is an item that allows you to change your Outer Suit to Ciri's outfit.

※You will need the production version of DAEMON X MACHINA to use this content.
※This content is not equipment, and is purely cosmetic. There are no status changes when using this content.
※This content is only available for female Outers. This cannot be used with male Outers

More details on the official game page of Outer Suit "Ciri's Outfit" ...