NHK announced has announced that the Demon School! Iruma-kun Season 4 will start broadcasting in April 2026. In addition, the network also released a key visual for the fourth season of the TV anime based on Osamu Nishi’s Welcome to Demon School, Iruma-kun (Mairimashita! Iruma-kun) manga – see below.

Welcome to Demon School! Iruma-kun tells 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 grandson of his own, so he dotes on Iruma and sends him to demon school.