Quexque in her redesigned Mew Mew uniform!
Her first name comes the common name of a type of edible mushroom, Indigo Milkcap Mushroom.
Some more details about Quexque!
Quexque isn't actually a Mew Mew; she's an alternate vessel for Deep Blue; a half Cyniclon shell. Had he utilized her as such, she would have suffered a fate similar to Masaya's. Fortunately, she differentiated herself enough to escape possession by choosing a unique nickname, hobbies, and wardrobe. In all other respects, she and other vessels are genetically identical.
Quexque had no idea of this, and went about her daily life, not knowing that before Deep Blue had chosen Masaya instead of her as his vessel, he had infused her with some of his power to help him possess her more easily. Therefore, the energy had stayed dormant inside her body without her having any notion of it until the fateful day she accidentally activated it in a fit of protective hysterical strength. Quexque's Mew Mew uniform is heavily altered; upon the initial manifestation of her powers, she wore clothes identical to Deep Blue and the Blue Knight's. She kept some elements, like coatlike design of the skirt, boots, and her shorts. Her Mew Mew Mark isn't actually such; it's a Cyniclon Emblem. It's on the centerline of her body in the same way the Mew Ichigo’s is, on the side.
In her human form, Quexque usually wears her private school uniform. She normally wears a navy jacket over a white blouse and a knee length navy pleated skirt.
Considering changing Quexque's weapon from a sword; maybe panpipes or such?