The story follows Iruma Suzuki, a 14-year-old human boy who is sold to a demon by his lazy, selfish and neglectful parents.

[40] Akita Shoten has collected its chapters into individual tankōbon volumes, of which the first was released on July 7, 2017.

[42] At Anime Expo 2022, Kodansha USA announced that they had licensed the series for English publication.

Iruma-kun if Episode of Mafia, that began serialization in Bessatsu Shōnen Champion on September 12, 2023.

[48] The second is a five-chapter spin-off manga centered around Kalego Naberius written and illustrated by Nishi, titled Mairimashita!

Iruma-kun: Kalego Gaiden, that was serialized in Weekly Shōnen Champion from December 7, 2023,[49] to January 18, 2024.

[50] During their panel at New York Comic Con 2024, Kodansha USA announced that they also licensed the mafia spin-off for English publication beginning in Q4 2025.

[61][62] On May 18, 2021, it was announced that Sentai Filmworks and Crunchyroll had acquired the home video rights for the anime.

Reviewing the first episode, Vrai Kaiser praised it for being "a bit of fall sweetness," praising the style, the promise of prominent female characters, hints of a larger plot, heartening that the ending or opening visuals aren't "particularly fanservicey," and the series is building up to "a mostly gender-balanced cast," while saying that it will likely be a "solidly middle-of-the-pack show" but put a smile on their face.

Iruma-kun: IruMafia Edition was nominated for the 10th Next Manga Awards in the print category and was ranked second.