Welcome to Demon School! Iruma-kun Season 4 Teases Dem-dol Games With New Trailer and Cast

Welcome to Demon School! Iruma-kun Season 4 dropped a second main visual and promotional trailer on June 13, 2026, shifting the spotlight toward the highly anticipated Dem-dol Games arc. The new materials also introduced three fresh cast members joining the demonic roster as the 24-episode season continues its spring 2026 run.

New Cast Additions

Three voice actors have been confirmed for newly revealed roles. Yuma Uchida will portray Leviathan Leiji, while Yoshitsugu Matsuoka best known for voicing Kirito in Sword Art Online takes on the role of Belial-Berry Raspberry. Both Leiji and Raspberry are positioned as fellow members of the so-called "Three Greats" generation, marking them as potential future Demon King candidates who stand on the same level as Iruma himself. Rounding out the new additions, Misato Matsuoka voices Gyari, a character set up as Team Devimus's primary rival during the festival events.

Second Main Visual and Trailer

The newly released visual prominently features Team Devimus comprising Irumi, Kuromu, Lindy, and Merry squaring off against Gyari, immediately establishing the competitive tension at the heart of the upcoming arc. The accompanying trailer builds on that rivalry, offering fans a first animated look at the Dem-dol Games and the broader festival atmosphere that surrounds them.

Season 4 is tackling several major storylines from Osamu Nishi's manga, including the Deviculum (Grand Noble Gathering), the Descent Ceremony, the Thirteen Crowns Dinner, and the Dem-dol Games. The arc progression signals a significant escalation in stakes as the series moves deeper into Iruma's journey through the demon world's power structures.

Production and Returning Staff

BN Pictures continues to helm the anime adaptation. Makoto Moriwaki, who previously served as director, has shifted to the chief director role for Season 4, while Ayaka Tsujihashi steps in as the new director. Series composer Kazuyuki Fudeyasu and character designer Yumiko Hara both return to their respective posts, maintaining continuity with the first three seasons. The core voice cast remains intact as well, with Ayumu Murase as Iruma Suzuki, Ryohei Kimura as Alice Asmodeus, and Ayaka Asai as Clara Valac.

Broadcast and Streaming Details

The fourth season began airing on April 4, 2026, and is confirmed for a full 24-episode run. International viewers can follow the series on Crunchyroll and iQIYI. The manga source material, serialized in Weekly Shonen Champion since 2017, has reached 49 collected volumes as of June 2026, giving the anime substantial material to draw from as it adapts these later arcs.

With the Dem-dol Games arc now firmly in the spotlight and fresh rivals entering the stage, Season 4 is setting the table for one of the series' most consequential stretches yet.