**Height:** 143cm Rizu is a genius with math and science but terrible with liberal arts. Rizu is one of the four students that is being tutored by Yuiga in Liberal Arts. She is smart when it comes to Science and Math, but is terrible with liberal arts. She is also terrible at understanding people's feelings and reading the mood of the conversation. She tends to see everything in a logical manner whenever something related to emotions such love and awkwardness arise.