Parallel Paradise

 is a Japanese manga series written and illustrated by Lynn Okamoto. It has been serialized in Kodansha's "Weekly Young Magazine" magazine since March 2017, and collected into thirteen "tankōbon" volumes as of March 2021.
In North America, the manga has been licensed for an English language release by Seven Seas Entertainment in August 2019.
Plot.
Youta Tada is an ordinary high school student who holds deep feelings for his childhood friend. One day during class, he is suddenly attacked and seemingly killed by a mysterious scarecrow-like being. Youta then wakes up and finds himself in an alternate world with castles, dragons and two colored moons in a purple sky. Here he meets paladin girl Lumi and a three-legged bird named Genius and quickly learns that he got into a women-only world where he is the first man that appeared in centuries. Thanks to that, females in this world have absolutely no resistance towards him and his single touch makes Lumi incredibly aroused. Genius then orders him to mate with her and all other girls in this fantastical world.
Publication.
"Parallel Paradise", written and illustrated by Lynn Okamoto, began in Kodansha's "seinen" manga magazine "Weekly Young Magazine" on March 18, 2017. Kodansha has compiled its chapters into individual "tankōbon" volumes. The first volume was published on August 4, 2017. As of March 5, 2021, thirteen volumes have been released.
Seven Seas Entertainment announced the acquisition of the manga in August 2019. It is being released under their Ghost Ship imprint, and the first volume was published on March 31, 2020.
Controversy.
In July 2020, the manga became one of seven titles to be removed from Books Kinokuniya in Australia for claims of promoting child pornography.