The season will have 24 episodes that will air over two consecutive cours.
The latest update of the “Welcome to Demon School! Iruma-kun” Season 4 anime unveiled that the series will premiere on 4 April, 2026. Moreover, the season will have 24 episodes, which will air over two consecutive cours, spanning the Spring and Summer anime seasons. Details about the anime’s opening theme song have also been revealed.
Welcome to Demon School! Iruma-kun Season 4 details
The J-Pop band Penthouse will perform the opening theme song ‘Ichi Ni no San’ for Welcome to Demon School! Iruma-kun Season 4.
A brand new key visual featuring Iruma and other main characters of the anime has also been released. Crunchyroll will stream the 4th season in North America, Central America, South America, Europe, Africa, Oceania, the Middle East, CIS and India as it airs.
Ayaka Tsujihashi directs the anime at Bandai Namco Pictures with Makoto Moriwaki as the chief director. Kazuyuki Fudeyasu handles series composition while Yumiko Hara designs the characters. Akimitsu Honma is the music composer for the series.
The anime is based on Osamu Nishi’s manga series which began serialising Akita Shōten’s Weekly Shonen Champion in March 2017. The series has 47 collected volumes as of February 2026. The first season of the anime aired from October 2019 to March 2020, with the second season following from April to September 2021. The third season of the anime came out in October 2022 and ended in March 2023. Crunchyroll streams all three seasons of the anime in English sub and dub formats and describes the story as:
Suzuki Iruma, human, 14, one day finds himself taken against his will into the world of demons. To add to his predicament, his doting owner and self-appointed "Grandpa" is the chair-demon at his new school. In order to survive, Iruma must deal with a haughty student who challenges him to a duel, a girl with adjustment issues, and so many more scary beings! Can this ultimate pacifist dodge the slings and arrows that are flung his way? As he struggles frantically, Iruma's innate kindness begins to win over enemies.
It was previously announced that Welcome to Demon School! Iruma-kun’s spin-off manga IruMafia Edition is also getting an anime adaptation which is set to premiere in January 2027.