Arika Yumemiya
Arika is very cheerful, and seems to be a good potential for an otome, because she is strong. For example, when she saves Mashiro with Nina, she attacks the men with skill. When the nanomachine is put to her so that she can fight with Nina later on, she does not get tired easily. Her power might have come from her mother, Rena Searrs, who was a very strong otome.