Kasumi Kawai

She is the older twin sister with good grades and who highly excels in academics. She has a huge fan club, being a pretty girl who's popular not only among the students but the teachers as well. She is also very calculating and good at sweet talk. She is quite mischievous, using assets as she pleases to play with people's feelings. She's a sadistic girl who led their previous home tutor on, only to humiliate him later.