Yuudai Sato

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.

Akagi is a mah-jong-centric Japanese comic, written and illustrated by Nobuyuki Fukumoto and first published in 1992. It is featured in the weekly magazine Modern Mahjong, and is a prequel to the author's previous work Ten, in which Akagi's titular character also appears. Due to its popularity, the manga has been adopted into two live-action direct-to-video movies, a 26-episode anime series which aired in Japan in the fall of 2005, and a live-action TV drama series.