Shota Iijima picked up erotic books during his childhood and suffers from a severe foreign sister fetish. Thereafter, from the years between his age of 12 to 15, he masturbated 999 times. For his 1000th round of masturbation, he had been transferred to a different world. And Shota is sold as a slave. A paradise for women and hell for men… Valhalla, the penis mansion. (Source: MU)

Valhalla Ochinchin-kan began as a web novel on Shousetsuka ni Narou on May 2, 2017. Kill Time Communication has released a revised and illustrated version of the series since January 31, 2019 under its Beginning Novels label.