Ninamori Eri

Eri Ninamori is the daughter of the mayor of Mabase and the president of Naota's sixth grade class. Like Naota she is obsessed with acting grown-up, but she often loses her composure when angry or excited. Ninamori hides her frustration with her father's sex scandal, and rigs an election for the school play so that she gets the lead role while Naota gets cast opposite her, hinting that she has a crush on him.