A collaboration visual featuring the fourth season of Mr. Osomatsu and the anime Welcome to Demon School! Iruma-kun has been officially revealed.
Mr. Osomatsu is currently celebrating its 10th anniversary, while the fourth season of Welcome to Demon School! Iruma-kun is set to premiere on April 4 on Crunchyroll and will run for two consecutive cours, totaling 24 episodes.
Collaboration Visual:

The four seasons of “Mr. Osomatsu,” along with the movie, are available for streaming on Crunchyroll. The platform describes the series as follows:
Mr. Osomatsu is based off of the gag manga series Osomatsu-kun by Fujio Akatsuka, and ran from 1962 to 1969. The series features a set of sextuplets, the Matsuno brothers, with Osomatsu being the oldest brother and leader of the group.
Welcome to Demon School! Iruma-kun is based on the manga by Osamu Nishi, which first launched in 2017 in Akita Shoten’s Weekly Shonen Champion magazine. The series has since grown to an impressive 45 collected volumes.
Crunchyroll currently streams all previous seasons of the anime, available in both subtitled and dubbed versions. The platform describes the story as follows:
Suzuki Iruma, human, 14, one day finds himself taken against his will into the world of demons. To add to his predicament, his doting owner and self-appointed “Grandpa” is the chair-demon at his new school. In order to survive, Iruma must deal with a haughty student who challenges him to a duel, a girl with adjustment issues, and so many more scary beings! Can this ultimate pacifist dodge the slings and arrows that are flung his way? As he struggles frantically, Iruma’s innate kindness begins to win over enemies.
Source: Comic Natalie
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