After Kiyono joins the society, the girls become aware of her habit of teasing what's under her skirt in front of boys. She flips up Yako's skirt and makes fun of the underwear, only to show some embarrassment when she flips hers back. The girls are surprised when Kiyono takes off her underwear before leaving. The next day, a moral exam is held and Kiyono is told off for wearing makeup. In the meeting later that day, Nayu brings a deconstructed bra, but Kiyono shows disinterest. She then insults Mizuno, particularly about her femininity and bra choice, and shows everyone catalogues of more kinky underwear. Kiyono argues with Nayu over looks vs comfort, but feels some embarrassment when the topic of who she loves is brought up.
Minori Chihara
Nayu Hayama
Sayuri Yahagi
Haruka Shiraishi
Minako Kotobuki
Yako Jingūji
Takahiro Sakurai
Keigo Hayama
Yoko Hikasa
Kiyono Amahara
Yuudai Sato
Hiroki Komachi
Sayaka Ohara
Tamaki Mizuno
Ako Mayama
Tsukamoto-sensei
Gara Takashima
Yōko Sagisawa
Tanuki Sugino
Principal
Katsuhisa Houki
Ōkuma-sensei
Motoki Takagi
Kōta
Naoko Sugiura
Kaori Seto
Takashi Onozuka
Komachi's older brother
Toshiyuki Morikawa
Tsuzuki
Umeka Shouji
Chigusa
Yuichi Nakamura
Tanihara-sensei
Yuiko Tatsumi
Suzuki
