Osomatsu San Season 4: Release Date, Plot & More!

A few years ago on March 2021, Mr. Osomatsu’s third season concluded, leaving fans eager for Osomatsu san Season 4. In this article, we will go over the latest news on the show’s renewal status and possible release date.

This comedy anime, based on Fujio Akatsuka’s manga, started in 2015. The second season came in 2017, and the third, with 25 episodes, aired from October 2020 to March 2021.

Fans are now waiting for news about the fourth installment.

Osomatsu San Season 4 Overview

Name of the SeasonOsomatsu San
Season NumberSeason 4
GenreComedy, Gag Humor, Parody
Season 1 Release DateOctober 6, 2015
Season 2 Release DateOctober 3, 2017
Season 3 Release DateOctober 13, 2020
Season 4 Release DateTo Be Announced
Season 4 Source MaterialOriginal/Manga

Osomatsu San Season 4: Release Date & Release Status

Osomatsu San Season 4: Release Date & Release Status

Viz Media, or any related company, hasn’t yet announced a fourth season for the Mr. Osomatsu series.

In Japan, this anime is huge, and it was even named the Top Buzzword in Japan in 2016. Despite being underrated in western countries due to its genre, its immense popularity in Japan may pave the way for a new season.

While the story lacks continuity, there have been hints of a fourth season. Unlike many anime that rely on manga as source material, Osomatsu-san is an independent production, eliminating source material constraints.

Studio Pierrot, known for long-running series like “Naruto: Shippuden” and “Bleach,” has been responsible for the Osomatsu-san series. This studio have a history of producing multiple seasons that runs for decades.

The previous season ended with the brothers expressing gratitude to viewers, hinting at a potential return, although no official date is confirmed yet.

Given the show’s previous release schedule, we can probably expect it to air around October 2024 or 2025.

Mr. Osomatsu Source Material Availability

Osomatsu san season 1 was an original anime that had no source material. However, thanks to the popularity of the series, manga, novel and game versions of the series were published.

The manga has been the source for the second and third season according to MyAnimeList. The manga started on January 15, 2016 and ended on November 26, 2020 with a total of 10 volumes.

Since the 2nd and 3rd season covered most of the manga, we can expect the fourth season to be an original just like the first.

What Will Happen In The Next Season?

What Will Happen In The Next Season?

Over the course of three seasons, Osomatsu and his siblings have undergone some growth, but their inherent laziness and immaturity remain unchanged.

What sets this series apart from others is its unique narrative structure, with each episode presenting a fresh storyline and resetting the characters by the end.

This approach grants the creators unparalleled creative freedom to explore various comedic scenarios.

Mr. Osomatsu Season 4 promises to deliver the same brand of unique humor, with the Matsuno brothers navigating bizarre situations and continuing to struggle in their interactions with women, ensuring viewers get their fill of laughter and entertainment.

Characters, Cast, and Crew of Osomatsu San

Characters, Cast, and Crew of Osomatsu San

If a fourth season of Osomatsu San is ever confirmed for renewal we can more or less expect the same cast. Below is a list of Japanese voice actors who worked on the first two seasons of Mr. Osomatsu:

Choromatsu MatsunoHiroshi Kamiya
Ichimatsu MatsunoJun Fukuyama
Juushimatsu MatsunoDaisuke Ono
Karamatsu MatsunoYuuichi Nakamura
Osomatsu MatsunoTakahiro Sakurai
Todomatsu MatsunoMiyu Irino

Where Can I Watch Mr. Osomatsu Season 4

Currently, all of Mr. Osomatsu is available on Crunchyroll to stream. Netflix has only the first season available on their platform. However, it is not available to all regions.

So, if you’re from a place where the series is unaccessable, you should consider using a VPN.

Another great and legal way to watch the show is by buying its blu-ray disc on Blu-Ray.com or Amazon.


As of September 2023, there is no official news on Osomatsu season 4’s release date. But speculation suggests it might air sometime in late 2024 or 2025.

Since the series is extremely popular in Japan, it is very likely that it will return with a fourth installment. Global audience rarely matter for renewals so the show’s low global popularity will not be an issue.

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