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Nana Yamamoto (山本 奈々)Birthday: July 29
Blood type: B
Older sister of Yuri and Yano's first girlfriend. She is the exact opposite of Yuri, and has a similar personality to Nana-chan. She is called Nana-san by most people to distinguish her from Takahashi Nanami. She dies in a car crash with her ex-boyfriend a year before the series takes place.