Mai Moritaka (森高麻衣) attended Mizuho High and played on the girls' basketball team. While her specific position isn't stated in the manga or anime, she became known for her shooting. After receiving personal training from Kazuhiko Aikawa, a key player on the boys' team, she developed the highest three-point shooting percentage among her teammates.

Aikawa, her romantic partner, nicknamed her "Pony" or "Pony tail" due to her long ponytail, a feature he noticed when they first met. This relationship remains consistent throughout the series. She is also a close friend of the girls' team captain, Mutsumi Akiyoshi, who is romantically involved with the boys' team captain, Takumi Fujiwara.

Moritaka has blonde hair reaching her chest and brown eyes. She stands 160 cm tall. Her birthday is July 3, making her zodiac sign Cancer. Her blood type is B.