『Iinchou』

A bespectacled classmate at Yuto's school and the class representative of Yuto's class. She has been shown to get along well with Yuto and Rinko(albeit the fact she has larger breasts than the latter), and often jokes around with them when it comes to romantic topics, especially their close relationship with each other. She is also shown to be an otaku, once doing a witch cosplay at the school festival and playing video games in her free time. Like Rinko, she, too, does not tolerate Taizo's pervertedness, which was shown in one chapter when she, along with Rinko, drowned him for attempting to peep at girls underwater. She apparently knows about the existence of the Demon Slayers, as shown in her research on Kuesu. She, along with her mother, were later put under Tama's control in Chapter 50, though Rinko manages to snap her out it in chapter 58. Her real name(which was not revealed until Chapter 49) is derived from voice actress Yū Shimamura who voiced her in the anime.