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Kokoa is a young girl of average height. She has brown hair styled in twintails fastened with pink ribbons. She is seen wearing her school uniform; a navy blue sailor outfit with a red neckerchief. She also wears brown loafers with white knee-length stockings.
- "Kokoa" (心愛? ) is composed of "Kokoro" (心? lit. Heart) and "Ai" (愛? lit. Love). "Takeda" (武田? ) means "military rice field".