The official website of Shogakukan 's Manga ONE app revealed on September 1 that manga creator Takashi Tsukimi will launch a manga adaptation of Rui Tsukiyo 's Shijō Saikyō Orc-san no Tanoshii Isekai Harem Zukuri (How History's Strongest Orc Creates a Harem on Another World) light novel in the app on Thursday .

The novel series centers on the son of a woman knight and an orc. Due to his appearance taking more after his mother, he was constantly bullied in the orc village. After meeting a beautiful elf lady, the strength of his blood awakens, and he hatches a plan to become history's strongest warrior in order to make a harem of beautiful women.

Tsukiyo initially published the story in the Shōsetsuka ni Narō (Let's Become Novelists) website, but removed it after Shogakukan published the novel in print under its GaGaGa Bunko light novel imprint on July 18. Sakura Miwabe drew the illustrations for the print version.

Tsukimi previously drew the Danganronpa manga. Dark Horse Comics released all three volumes of the manga.

Tsukiyo previously published the Maō-sama no Machizukuri story in Shōsetsuka ni Narō from June 2016 to March 2018. SB Creative began publishing the novel series in print with illustrations by Takahiro Tsurusaki in December 2016, and it shipped the eighth volume on June 14. Hideaki Yoshikawa launched a manga adaptation in Overlap 's Comic Gardo website in March 2018, and Overlap published the manga's second volume on May 25. Seven Seas Entertainment licensed the manga, and will release it under the title Dungeon Builder: The Demon King's Labyrinth is a Modern City! , beginning with the first volume on January 7, 2020. Tsukiyo launched the related Maō-sama no Machizukuri ~Mahō to Kagaku to Mamono ga Tsukuru Risō no Machi~ novel series in August 2018 and ended it on April 5.