30-sai no Hoken Taiiku (30歳の保健体育, Sanjussai no Hoken Taiiku; lit. "Health and Physical Education for 30-Year-Olds") is a Japanese guidebook series written by Mitsuba and published by Ichijinsha. The series is aimed at men in their 30s who have not had any romantic or sexual relationships with women. The manga adaptation by Rikako Inomoto began in the November/December 2010 issue of Comic Rex. In 2011, the book was adapted into an anime television series produced by Gathering and was broadcasted in Japan on Nippon BS Broadcasting BS11 and Tokyo Metropolitan Television starting April 2011.
Imagawa Hayao is a 30-year-old virgin bachelor. One day, a cupid descends from heaven with the express purpose of forcing him to graduate from virginity. Thus unfolds a pure love story between a 30-year-old bachelor and a 30-year-old bachelorette.