Also known as: カーミラ(水着)
Carmilla Swimsuit Rider in her First Ascension outfit from Fate/Grand Order. She wears a wide-brimmed red hat, sunglasses, a red dress with a black see-through layer beneath, and black sandals. Her two Doberman dogs accompany her for her attacks.
Since she fancies herself as the phantom thief Mistress C, this design may or may not be a reference to Carmen Sandiego.