The story revolves around Nayu Hayama, who embarrasses herself on the first day of middle school by accidentally showing her adult panties. As two other students, Yako Jingūji and Haruka Shiraishi, hear rumors of her engaging in "enjo kōsai", or compensated dating (which often is viewed as being close to or the same as prostitution), they investigate. They soon learn that Nayu is an 'underwear monitor' who tests new underwear products, and has great insight on what underwear people should wear. Nayu hopes to help everyone get through the vital stage of their life by opening an underwear club.
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
Oruchuban Ebichu69%
KILL BLUE81%
Maison Ikkoku76%
Mr. Villain's Day Off68%
Nisekoi82%
Monster Hunter Stories: Ride On79%
Kinnikuman77%
Marriage Toxin79%
3x3 Eyes61%
Miru Tights61%
Hana-Kimi75%
Shikimori's Not Just a Cutie77%
The "Hentai" Prince and the Stony Cat71%
Sakura Trick61%
Actually, I Am...81%
Call of the Night77%
So, I Can't Play H!77%
Kimagure Orange Road66%
I Want to End This Love Game74%
Zenki80%
