Nana's best friend, she tries to support Nana in her quest to tell Yuuichi how she really feels. Her parents also own a restaurant which she and Nana go to each year and have a yearly party. She is also the one that seems to know Nana better than Nana knows herself and is easily able to tell which "Nana" is which after they split into the seven individual parts of the same personality. Hitomi has completely different looking eyes when seen without glasses, a feature Hitomi used to disguise herself.