如月 響子

Affiliation: Ichisakura Academy second year, part of the idol unit Rodeo Machine Girls. 
Kyouko met the protagonist in the park when they were children. He protected her from bullies. 
She told him about her dreams of becoming an idol, and the protagonist made her promise to never give up. 
Although she seems like the cool type, Kyouko is actually more of a doting older sister to those she meets. 
Recently, Kyouko has been faltering in her idol activities due to strenuous school work.