The official Twitter handle for Welcome to Demon School! Iruma-kun announced on Aug 15, 2022, that season 3 for the anime will be released on Oct 8, 2022.

A new key visual was also revealed with the announcement. The visual features Iruma and other members of the Abnormal class at the Harvest Festival.

Welcome to Demon School! Iruma-kun Season 3 is listed with 21 episodes and will be broadcast on  NHK E Tele in Japan.

Information on new cast members will be revealed at a later date. However, main staff details have been revealed.

• Director: Makoto Moriwaki
• Series composition: Kazuyuki Fudeyasu
• Character design: Yumiko Hara
• Music: Akimitsu Homma
• Animation production: BN Pictures

Welcome to Demon School! Iruma-kun is a Japanese manga series by Osamu Nishi. It has been serialized in Akita Shoten’s shōnen manga magazine Weekly Shōnen Champion since March 2017. As of June 2022, the series has been collected in twenty-seven tankōbon volumes.

An anime television series adaptation by Bandai Namco Pictures aired between October 2019 and March 2020, and a second season aired from April to September 2021.

Plot of Welcome to Demon School! Iruma-kun Season 3 is described as:

In the third series, a new ordeal is imposed on Iruma and the other problematic (abnormal) classes. It is the “Harvest Festival,” the final battle for the first-year students, in which they compete to secure food by entering the huge jungle of the demon world. The Harvest Festival begins, where the classmates become rivals and engage in powerful battles of bullets and intrigue to determine the young demon king.

Source: Twitter

(C)Osamu Nishi (Akita Shoten)/NHK/NEP