>>5337483Nurse types and aquatic types.
That and recolors.
>>5338718Come to think of it, her name was posted a long while ago. Mantasia, or something to that effect.
It's also worth noting that it seems like Hi-Riridine and Chocolatte were actually planned to be flat gray and white from the beginning rather than gunmetal. Some expo pics and other promo bits show them in those colors, and only the promo bits used on sites make them seem gunmetal. Ah well.