Fulldrum

Full Drum is a rugby-themed work about a high school boy named Hino who has been repeatedly kicked out of all the clubs he joined thanks to his lack of athletic ability. The protagonist Hino has dirty thoughts of becoming popular with girls by entering a sports club. One day, he meets a rugby club manager named Ayako. After becoming totally fascinated with Ayako, Hino decides to join the rugby club.

(Source: Manga Tokyo)