Madoka is a talented runner, like her boyfriend, Shigeo Umezu. As a result, she was part of the women's team during the Athletics Festival. But her real talent is slowly driving her boyfriend insane.
Shigeo is her current boyfriend. Often she can be seen as the dominant partner in this relationship. She was the one to first initiate their first kiss. Her flirtatious attitude seems to cause some misunderstandings between her and Shigeo. Her determination sometimes gets in the way of their relationship such as shooting Shigeo during the survival game even when he said he had no interest in shooting her. The reason for shooting Shigeo was because she really wanted to don a maid uniform and participate in the Tea House.