Mr. Osomatsu 4th Season

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📖 SYNOPSIS

Still unemployed, still shameless, and still leeching off their parents — these six identical brothers have zero intention of changing any of that. The Matsuno sextuplets — Osomatsu, Karamatsu, Choromatsu, Ichimatsu, Jyushimatsu, and Todomatsu — are back for a fourth season of doing absolutely nothing productive and somehow making it endlessly entertaining. Each brother has a distinct personality that clashes perfectly with the others: one's a narcissist, one's a depressed cat lover, one's disturbingly energetic, and the rest fill out every flavor of lovable disaster you can imagine. The setup for this season drops them right back into their usual routine — lounging around in the summer heat, bickering over nothing, and stumbling into increasingly absurd situations that parody everything from modern work culture to anime tropes themselves. Studio Pierrot Films keeps the animation loose and expressive, which fits the gag humor perfectly — characters stretch, morph, and break form whenever the joke demands it. If you're into shows like Crayon Shin-chan or Tensai Bakabon where the comedy is shameless and the characters have zero growth by design, this is your lane. It also has that same irreverent energy as KochiKame, where the humor comes from watching fundamentally flawed people refuse to improve. At 12 episodes, the season doesn't overstay its welcome. Just pure, dumb fun with surprisingly sharp writing underneath all the chaos.

GlowingStar

Overall Ranking

✨ MUST WATCH IF...

You love the Matsuno brothers' absurd humor and want more satirical sketches this season
A shorter 12-episode run appeals to you — half of Season 3's 25-episode count
Gag-driven episodic comedy with no overarching plot is exactly your thing
You're okay with Pierrot Films handling production instead of Studio Pierrot from prior seasons

❌ SKIP IF...

You haven't finished Season 3 — character dynamics and running gags won't land properly
Stretched-out sketches and slower pacing frustrate you — some episodes drag simple bits too long
You want fresh material — certain jokes and scenarios feel recycled from earlier seasons

🎬 EPISODE GUIDE

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MANGA BRIDGE

This season covers Chapters 1-null of the manga. Continue reading from Chapter 1.

Manga cover

🎭 CHARACTERS

Ichimatsu Matsuno

Ichimatsu, the antisocial Matsuno brother, secretly loves cats and Jyushimatsu, while despising Karamatsu.

Portrayed by Fukuyama Jun, Yokoo Mari, Kitahama Haruko

Karamatsu Matsuno

Karamatsu, the second brother, tries to be cool but fails, easily pleased by the smallest compliments.

Portrayed by Nakamura Yuuichi, Mashiba Mari, Shiraishi Fuyumi

Juushimatsu Matsuno

Juushimatsu: The goofy, perpetually smiling fifth brother, a bit naive but always upbeat.

Portrayed by Matsui Naoko, Ono Daisuke, Azuma Mie

Osomatsu Matsuno

Osomatsu Matsuno: The eldest Matsuno sextuplet, a lazy but surprisingly strong leader.

Portrayed by Katou Midori, Sakurai Takahiro, Inoue You

Choromatsu Matsuno

Choromatsu, the responsible sextuplet, often plays the straight man, but his obsession with cute girls, Totoko and Nyaa-chan, leads him astray.

Portrayed by Yamamoto Keiko, Kamiya Hiroshi, Matsumoto Rica

Todomatsu Matsuno

The youngest Matsuno brother, Todomatsu is a two-faced, girly, yet cruel character, often the straight man, known for his catchphrase "todo no tsumari".

Portrayed by Kitahama Haruko, Megumi Hayashibara, Irino Miyu

Osomatsu Series

Osomatsu-kun (1988)

TV · 1988 · Studio Pierrot

Osomatsu-kun (1988)

The comedic misadventures of the Matsuno sextuplets are often overshadowed by the schemes of the buck-toothed Iyami and his sidekick Chibita, all set in a world of shifting genres.

Osomatsu-kun (1988): Appare! Chibita no Onitaiji zansu

Special · 1988 · Studio Pierrot

Osomatsu-kun (1988): Appare! Chibita no Onitaiji zansu

The 1988 Osomatsu-kun anime concludes with Iyami's election antics and features various humorous situations involving the Matsuno sextuplets and their friends.

Osomatsu-kun: Suika no Hoshi kara Konnichiwa zansu!

Movie · 1989 · Studio Pierrot

Osomatsu-kun: Suika no Hoshi kara Konnichiwa zansu!

The Matsuno sextuplets encounter extraterrestrial visitors who arrive on Earth seeking friendship and adventure, leading to comical situations.

Osomatsu-kun: Iyami wa Hitori Kaze no Naka

OVA · 1990 · Studio Pierrot

Osomatsu-kun: Iyami wa Hitori Kaze no Naka

In this period romantic comedy, the ronin Iyami finds love with a blind girl, a story inspired by Charlie Chaplin's classic film, *City Lights*.

Mr. Osomatsu

TV · 2015 · Studio Pierrot

Mr. Osomatsu

Six hopeless brothers, one chaotic household — adulthood has never looked this ridiculous.

Mid50%Mid
Mr. Osomatsu Episode 3.5: Virgin Heroes

Special · 2016 · Studio Pierrot

Mr. Osomatsu Episode 3.5: Virgin Heroes

Episode 3.5 of Mr. Osomatsu presents two short stories: a special morning for the Matsuno brothers and Choromatsu's feelings of inadequacy.

Mr. Osomatsu JRA Special 2016

Special · 2016 · Studio Pierrot

Mr. Osomatsu JRA Special 2016

A special episode of the comedic anime Osomatsu-san, this collaboration with the Japan Racing Association brings the sextuplets to the world of horse racing.

Osomatsu-san: Haru no Zenkoku Dai Senbatsu Jouei-sai - Sentou Quiz 2

Movie · 2017 · Studio Pierrot

Osomatsu-san: Haru no Zenkoku Dai Senbatsu Jouei-sai - Sentou Quiz 2

This theatrical screening presents a new anime short episode alongside selected episodes featuring the Matsuno sextuplets and the "Osomatsu-san: Ouma de Kobanashi" special.

Mr. Osomatsu 2

TV · 2017 · Studio Pierrot

Mr. Osomatsu 2

The Matsuno sextuplets return in a second season of chaotic, slice-of-life comedy, navigating the absurdities of modern life with their usual brand of irreverent humor.

dMatsu-san

ONA · 2018 · Studio Pierrot

dMatsu-san

dMatsu-san is a short, exclusive anime series featuring the sextuplet brothers in individual stories, exploring their interactions with Totoko and Iyami in unique scenarios.

Osomatsu-san: Hajimaru Hajimari

Special · 2018 · Studio Pierrot

Osomatsu-san: Hajimaru Hajimari

The Osomatsu sextuplets star in a mini-anime recreating classic Japanese folktales like Tsuru no Ongaeshi and Momotarou, all within a Daiichi pachinko event.

Osomatsu-san Movie: Gekijou Koukai Kinen - Original Tanpen Gekijou

ONA · 2019 · Studio Pierrot

Osomatsu-san Movie: Gekijou Koukai Kinen - Original Tanpen Gekijou

This short series, depicting the daily lives of the Matsuno sextuplets, offers a glimpse into their comedic side stories, originally released on the dTV streaming service.

Mr. Osomatsu 3

TV · 2020 · Studio Pierrot

Mr. Osomatsu 3

The Matsuno sextuplets return in the third season, continuing their chaotic and comedic adventures in modern-day Japan, navigating adulthood with their usual laziness.

Osomatsu-san 3rd Season Specials

Special · 2020 · Studio Pierrot

Osomatsu-san 3rd Season Specials

The "Osomatsu-san 3rd Season Specials" feature short, comedic anime episodes adapted from 4-koma manga submissions created by the show's dedicated fanbase.

Chocomatsu-san: Valentine's Day-hen

ONA · 2021 · Studio Pierrot

Chocomatsu-san: Valentine's Day-hen

A collection of Valentine's Day-themed short stories featuring the sextuplet Matsuno brothers, exclusively available on dTV.

Chocomatsu-san: White Day-hen

ONA · 2021 · Studio Pierrot

Chocomatsu-san: White Day-hen

This dTV exclusive series of shorts presents the Matsuno sextuplets in a collection of White Day-themed stories.

Matsuinu

TV · 2023 · Point Pictures

Matsuinu

"Matsuinu" chronicles the heartwarming daily lives of six adorable, round dogs, offering viewers a dose of fluffy comfort and peaceful relaxation.

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Mr. Osomatsu 4th Season

Studio

Pierrot Films

Season

Summer 2025

Start Date

2025-07-09

End Date

2025-10-01

Episodes

13

Type

TV

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