The highly anticipated fourth season of the popular anime series, Mr. Osomatsu, is set to premiere in July 2025. This announcement has sent waves of excitement through the anime community, as fans eagerly await the return of the mischievous Matsuno sextuplets. A new teaser visual and promotional video have been released, offering a first look at what the upcoming season has in store.
A Summer Premiere for the Matsuno Brothers
Breaking from its tradition of fall premieres, Mr. Osomatsu Season 4 will mark the series’ first summer broadcast. The teaser visual depicts the six brothers relaxing by a riverbank, sporting new short-sleeved outfits, each adorned with the iconic “Matsu” symbol on their chest and back. This sunny scene perfectly captures the relaxed yet chaotic essence of the show and hints at the lighthearted, comedic tone that fans have come to expect.
The Teaser PV: A Roll Call of Chaos
The teaser PV opens with the eldest brother, Osomatsu, shouting, “Matsuno family—!”. Following his lead, each brother responds in turn, showcasing their distinctive personalities. This “roll call” format is a classic Mr. Osomatsu trope, and the preview promises the same blend of playful humor and chaotic antics that have made the series a hit.
The Creative Team Behind the Chaos
The creative team behind the new season includes:
- Director: Yoshinori Odaka, who previously directed the 2022 film, Mr. Osomatsu: The Hipipo Tribe and the Shining Fruit, makes his TV series directorial debut.
- Series Composition: Shuu Matsubara returns to oversee the story and ensure the show stays true to its roots.
- Character Design: Eiji Abiko is also back to handle character designs.
This reunion of key staff members assures fans that Season 4 will retain the show’s unique style while exploring new dynamics and comedic opportunities.
The Endearing Story of the Matsuno Sextuplets
Mr. Osomatsu is a reboot of the classic manga series, Osomatsu-kun, by Fujio Akatsuka. The original series, which debuted in 1962, followed the mischievous Matsuno sextuplets as 10-year-olds. Mr. Osomatsu, created to celebrate Akatsuka’s 80th birthday, reimagines the brothers as adults, still living at home and not contributing to society.
The series focuses on the daily lives of these six identical brothers:
- Osomatsu, the eldest and self-proclaimed leader, often portrayed as lazy and irresponsible.
- Karamatsu, the wannabe cool and often cringeworthy brother who tries hard to be reliable.
- Choromatsu, the straight man and the most sensible of the bunch, known for his obsession with idols.
- Ichimatsu, the cynical and withdrawn brother who finds comfort in cats.
- Jyushimatsu, the energetic and often incomprehensible brother, always full of bizarre antics.
- Todomatsu, the youngest and most socially adept of the group, sometimes called “Totty” by his siblings.
The series also features a cast of eccentric supporting characters such as the fish market idol Totoko, the loud troublemaker Iyami, and the tiny rival Chibita, all of whom add to the chaotic mix. The show’s premise revolves around the sextuplets’ struggles with mundane issues like finding work and interacting with others, usually with hilarious results. The humor is often adult-oriented, involving slapstick, wordplay, and social commentary.
A Legacy of Laughter
Since its premiere in 2015, Mr. Osomatsu has become a global phenomenon, drawing in viewers with its unique blend of humor, irreverence, and surprisingly relatable characters. The show’s success has led to multiple seasons, theatrical films, and various spin-offs, cementing its place in the anime landscape.
The franchise includes:
- Three previous seasons of the Mr. Osomatsu anime which premiered in 2015, 2017 and 2020.
- Theatrical anime films, including Eiga no Osomatsu-san (2019), Osomatsu-san ~Hipipo-Zoku to Kagayaku Kajitsu~ (2022), and Osomatsu-san: Tamashii no Takoyaki Party to Densetsu no Otomari-kai (2023).
- Matsu Inu, a spin-off anime series that was inspired by dog character products.
- A manga adaptation by Masako Shitaro.
- A live-action film.
- Various anime shorts.
The series has been praised for its creative writing, unique animation style, and memorable characters. It has garnered a substantial following both in Japan and internationally, with many fans eagerly awaiting each new release.
Where to Watch
Previous seasons of Mr. Osomatsu, along with the Mr. Osomatsu movie, are currently available for streaming on Crunchyroll. This makes it an ideal platform for new fans to catch up on the previous adventures of the Matsuno brothers before the fourth season premieres.
What to Expect in Season 4
While the exact plot details of Season 4 remain under wraps, fans can expect more of the same wild, comedic antics that have made the show so popular. The new season promises to delve deeper into the lives of the Matsuno brothers, exploring their unique personalities and their hilarious interactions with each other and their eccentric neighbors.
With the return of key staff members, there’s a strong sense that Season 4 will maintain the show’s distinctive tone while introducing new and exciting stories. The summer premiere also suggests a fresh, lighter vibe that will resonate with audiences.
A July Premiere to Look Forward To
The announcement of the July 2025 premiere has generated significant buzz among fans. With a new teaser visual and PV now available, the excitement is building for the fourth season of Mr. Osomatsu. As fans eagerly count down the months until the premiere, there is much anticipation for the return of their favorite lazy, irreverent, and ultimately endearing sextuplets. The summer of 2025 promises to be filled with laughter and chaos as the Matsuno brothers once again grace our screens.
