Kawahara Chisato

Chisato is an inquisitive scientist and Takuya's junior in the chemistry club. She is never without an experiment in her hands. Although she looks cute, in fact she is a very dangerous lady who developed a dubious machine that she named "Quick Revolution". That dangerous machine transformed Takuya into a girl so now Chisato needs to develop a cure to turn him back into a boy again. She’s also on a quest to beat her old rival, Satou Asami, who successfully transformed Takuya from a girl into a boy last year so this new experiment also holds a very personal value for her as she strives to show that she's a better scientist than Asami.