Miyama Mizuha (深山瑞葉) was the captain of the
manga kenkyuu kai (漫画研究会) [manga club] at Kitanohashi High School.
She was very well built, and Takakura always stared at her breasts
when he tried to talk to her.
In the anime, Mizuha's voice is done by Sakuma Rei (佐久間レイ).