Health and Physical Education for 30-Year-Olds) is a Japanese guidebook series written by Mitsuba and published by Ichijinsha.

In 2011, the book was adapted into an anime television series produced by Gathering and was broadcast in Japan on BS11 and Tokyo MX from April to June 2011.

Daigorō is a God of Sexual Love sent from heaven in order to help Hayao meet women and lose his virginity.

Pī-chan and her twin sister Kū-chan are Gods of Sexual Love sent from heaven to help Natsu build relationships, fall in love and lose her virginity, they dress in the Gothic Lolita fashion; Pī-chan is the smarter and more pro-active of the sisters.

She's had a run-in with Daigorō before as he liked flipping her skirt in elementary school, but also has a crush on Daigoro Kū-chan and her twin sister Pī-chan are Gods of Sexual Love sent from heaven to help Natsu build relationships, fall in love and lose her virginity, they dress in the Gothic Lolita fashion; Kū-chan likes eating and drinking weird and often very spicy things such as Peppercorns and Tabasco.