The 3rd season of Welcome to Demon School, Iruma-kun has released the main trailer for the anime ahead of its premiere on October 8. The theme songs are "Girigiri Ride it out" by FANTASTICS from EXILE TRIBE (Opening) and "Nabe Bugyo" by Wednesday Campanella (Ending). The third season is set to consist of a total of 21 episodes. The main cast members are also returning for the third season.



Osamu Nishi creates the original manga, which has been serialized in Weekly Shonen Champion since March 2017. Season 1 of the anime adaptation aired in the fall of 2019 and ran for a total of 23 episodes until March 2020. Season 2 aired for a total of 21 episodes from April to September 2021, after which Season 3 was announced.

The story of Mairimashita! Iruma-kun follows Iruma, a kind-hearted 14-year-old boy whose parents sell him to demons for their own selfish interests. However, the demon he is sold to has no grandchild of his own, so he takes care of Iruma and enrolls him in demon school.