The long wait is finally over. Welcome to Demon School! Iruma-kun Season 4 officially started airing on April 4, 2026, bringing back the beloved human boy navigating life in the Netherworld. After a three-year break since the previous season, fans can watch 24 new episodes that will release weekly across two cours (broadcast periods).
The new season continues the story of Suzuki Iruma, a kind-hearted 14-year-old who was sold to a demon by his parents and now attends Babylus Demon School. Crunchyroll is streaming the series as it airs for audiences worldwide, with new episodes dropping every Saturday.
Season 4 Episode Release Schedule And Air Time
Welcome to Demon School! Iruma-kun Season 4 follows a weekly release pattern. The show airs on NHK Educational in Japan every Saturday at 6:25 p.m. JST (5:25 a.m. EDT / 2:25 a.m. PDT). For viewers in the UK, that translates to approximately 10:25 a.m. BST, while Australian fans can watch around 7:25 p.m. AEST.
Here is the full episode release schedule for Season 4:
- Episode 1 – April 4, 2026
- Episode 2 – April 11, 2026
- Episode 3 – April 18, 2026
- Episode 4 – April 25, 2026
- Episode 5 – May 2, 2026
- Episode 6 – May 9, 2026
- Episode 7 – May 16, 2026
- Episode 8 – May 23, 2026
- Episode 9 – May 30, 2026
- Episode 10 – June 6, 2026
- Episode 11 – June 13, 2026
- Episode 12 – June 20, 2026
- Episode 13 – June 27, 2026
- Episode 14 – July 4, 2026
- Episode 15 – July 11, 2026
- Episode 16 – July 18, 2026
- Episode 17 – July 25, 2026
- Episode 18 – August 1, 2026
- Episode 19 – August 8, 2026
- Episode 20 – August 15, 2026
- Episode 21 – August 22, 2026
- Episode 22 – August 29, 2026
- Episode 23 – September 5, 2026
- Episode 24 – September 12, 2026
The total run of 24 episodes means the season will continue through September 12, 2026, giving fans nearly six months of new content.
Crunchyroll Streaming Details And Global Availability
Crunchyroll is the official streaming home for Welcome to Demon School! Iruma-kun Season 4 outside Japan. The platform offers the new episodes in multiple regions including North America, Central America, South America, Europe, Africa, Oceania, the Middle East, CIS countries, and India.
Fans can watch the series with both subtitled and dubbed English versions available. The previous three seasons are also available on Crunchyroll for those who need to catch up on Iruma’s story.
“The Misfit Class find out they need to compete in the Music Festival and find out they had another student.” – Episode 1 description
New Characters And Theme Song For Season 4
The fourth season introduces a key new character to the voice cast. Setsuo Ito, known for voicing Shigeo Kageyama in Mob Psycho 100, joins the series as Purson Soi. Purson is Iruma’s classmate from a family whose belief is to avoid standing out at all costs. His ability to erase his presence has allowed him to remain hidden since Season 1, and this season marks his first proper introduction.
The opening theme song for Welcome to Demon School! Iruma-kun Season 4 is titled “Ichi Ni no San” performed by the band Penthouse. The music video and main promotional trailer were released in March 2026, giving fans a preview of the new season’s energy.
Takehito Koyasu also joins the cast as Amduscias Poro.
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Music Festival Arc Takes Center Stage
Welcome to Demon School! Iruma-kun Season 4 adapts the popular Music Festival arc from Osamu Nishi’s original manga. The story follows the Misfit Class as they discover they must compete in the Music Festival. This arc puts the spotlight on Purson Soi, the forgotten 13th member of the class, whose family’s secret traditions play a big role in the competition.
The manga, which began serialization in Weekly Shonen Champion in 2017, has released 45 volumes in Japan, with Kodansha USA publishing the English version. Makoto Moriwaki returns as Chief Director for Season 4, with Ayaka Tsujihashi serving as director.
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