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.