Osomatsu-san Season 4 Drops Release Date, New PV, and Theme Song Previews

Welcome Back, Matsuno Sextuplets — Season 4 Is Officially On The Way!

If you’ve been following the Matsuno brothers’ unpredictable antics since the very first episode, get ready, because Osomatsu-san Season 4 finally has a release window! The new season is hitting our screens in July 2025, and the latest promotional video (PV) just dropped—packed with hints, laugh-out-loud moments, and yes, a sneak peek at those fresh theme songs. It’s honestly wild to think how far these lazy NEETs and their wild supporting cast have come since their Showa-era roots.

What’s In the New PV? Theme Song Teasers & Returning Faces

Osomatsu-san’s new PV is a riot from the start. The trailer flashes between classic chaotic group shots, what look like some new character gags, and glimpses of how everyone’s matured (sort of?). The theme songs absolutely set the tone—if past openings like “Hanamaru Pippi wa Yoiko Dake” ever got stuck in your head, get ready for your next earworm.

• Release Window: July 2025
• Animation Studio: Studio Pierrot returns to helm the madness
• Main Cast: Takahiro Sakurai (Osomatsu), Yuichi Nakamura (Karamatsu), Hiroshi Kamiya (Choromatsu), and the whole legendary lineup are back (honestly, would it be Osomatsu-san without them?)
• Theme Song Artists: Still a secret, but fans are already speculating after the PV snippets!

What to Expect: Storylines, Character Growth, and Fan Theories

Season 4’s plot details are mostly under wraps, but the PV throws out enough clues for us fans to start theorizing. Are the Matsunos actually… growing up, just a little? Or is it all setup for another round of disasters? The anime’s always thrived on parodying everything from pop culture to daily life, and the community is already buzzing about which new trends and memes might get roasted this time.

If you’ve read the original “Osomatsu-kun” manga or followed earlier seasons, you know the show thrives on unpredictability (remember those shock plot twists in Season 2’s finale and the movie’s wild alternate realities?). With the creative team back, expect plenty of throwbacks, blink-and-you’ll-miss-it references, and new gags designed to break the Internet.

Where to Watch & What We Still Need to Know

The streaming platforms haven’t been confirmed yet, though Crunchyroll and Netflix both picked up prior seasons. Fingers crossed for a simulcast! Studio Pierrot, also known for Bleach and Black Clover, is handling animation again—which honestly makes sense, considering their knack for balancing comedy with just the right dose of mayhem.

• Studio: Pierrot (unchanged)
• Likely Platforms: TBA (fans are hoping for global streaming at launch)

Fan Community Buzz: Are You Ready?

With “Osomatsu-san Season 4” and “Osomatsu-san 2025 release date” already trending across Twitter and Reddit, it’s clear: the hype is real, but it comes with that uniquely Osomatsu mix of excitement and skepticism. Will we finally get more screen time for Totoko? Which running gags will return, and which character will trend next? Most importantly, how unhinged will the Matsuno sextuplets get this time?

Final Thoughts

Whether you’re here for the absurd humor, secret heartwarming moments, or just love watching the brothers fail upwards, Osomatsu-san Season 4 feels like it’s shaping up to be worth the wait. With a confirmed July 2025 release and new themes on the horizon, it’s a great time to rewatch, catch up on discussion threads, and swap wild predictions.

What are you hoping for from the new season? Is there a favorite skit or character arc you want to see referenced or continued? Let’s get the conversation started—drop your Osomatsu-san Season 4 predictions in the comments below!