The long wait for the continuation of Iruma's adventures in the demon world has finally seen the light of day. Anime Mairimashita! Iruma-kun Season 4 has just released a main promo video that reveals many interesting details.
This video gives a clearer picture of the conflicts and new characters that will be present in the upcoming broadcast.
Mairimashita! Iruma-kun Season 4 Schedule
Based on the official announcement, anime will premiere on Japanese TV stations on April 4, 2026. For those of you waiting for the streaming version, the new episode will be available on global platforms starting April 6.
For international viewers, streaming platform Crunchyroll has confirmed that it will simulcast the series. Viewing regions include North America, Europe, Southeast Asia, and various other regions.
This ensures that you can follow each new episode alongside the original release schedule. Previously, Crunchyroll had also aired the anime's first episode exclusively at the Anime Frontier event last December.
The most interesting thing about this announcement is the confirmation of the duration of the show. Season 4 is set to run for two consecutive cours.
With the two cour format, the audience will be presented with a total of 24 episodes. This decision provided ample room to adapt the story of the original manga in more depth.
New Characters and Legendary Voice Actors
In addition to releasing the main promotional video, the latest announcement also revealed new cast additions that will enliven the character lineup. Veteran voice actors Takehito Koyasu officially joined the project.
Takehito Koyasu will lend his voice to the character of Amduscias Poro. The presence of this legendary voice actor certainly adds to the appeal for anime fans who are already familiar with his various iconic roles.
On the other hand, the character of Purson Soi, who had become a highlight in the previous announcement, was also reaffirmed. The character voiced by Setsuo Ito This is the 13th student from the Abnormal class who has been forgotten.
The focus of the upcoming story is expected to explore Purson Soi's background and role in the class dynamic. You can read more details about this character's story focus in the article Mairimashita! Iruma-kun Season 4 Returns April 2026.
Opening Song of Mairimashita! Iruma-kun Season 4
The main promo video released not only shows the latest action of Iruma and friends. The video also played the opening theme song for this broadcast.
The opening song is titled “Ichi Ni no San” performed by the music group Penthouse. The energetic beat of the song fits perfectly with the school comedy and action that characterizes the series.
The combination of bright visuals and a catchy theme song is expected to build the audience's spirits. For those of you who have followed Iruma's journey since the beginning, this musical element has always been an important part of the anime's identity.
About Mairimashita! Iruma-kun
The franchise's basic story follows Iruma, a kind-hearted 14-year-old boy who is sold by his parents to the devil. However, the demon who bought him turns out to have no grandchildren, so he dotes on Iruma and enrolls him in a demon school.
This anime adaptation of Osamu Nishi's manga has had a long broadcast history. Season 1 premiered in October 2019 with 23 episodes.
The success was followed by Season 2 in April 2021 and Season 3 in October 2022.
The original manga was first launched in Akita Shoten's Weekly Shonen Champion magazine in March 2017. To date, the popularity of the series continues to persist thanks to its solid blend of fantasy elements and character development.
