Exciting Countdown for 'Osomatsu-san' Season 4 Premiere on Nico Nico

Countdown to 'Osomatsu-san' Season 4 Premiere

The much-anticipated fourth season of the TV anime Osomatsu-san is just around the corner! In celebration of its upcoming premiere on July 8, 2025, the streaming service Nico Nico Live has announced an exciting countdown initiative. From July 2 to July 7, viewers can enjoy a free screening of the first three seasons, in preparation for the new season.

Osomatsu-san, which first aired in 2015, is a tribute to the 80th birthday of Fujio Akatsuka, the legendary manga artist. The anime portrays the six adult Matsuno brothers, known for their comical endeavors and relatable life crises, based on Akatsuka's classic gag manga Osomatsu-kun. This new season not only marks the 10th anniversary of the show's debut but also brings back fresh content after nearly five years, creating waves of excitement among long-standing fans.

Detailed Countdown Broadcast Schedule

To enhance the excitement as we approach the premiere of the fourth season, Nico Nico has organized a series of special re-broadcasts from the previous seasons:

1. Countdown until 6 days: Osomatsu-san Episodes 2 to 12.
Air Date: July 2, 2025, at 7:00 PM
Watch here

2. Countdown until 5 days: Osomatsu-san Episodes 13 to 25 and Uma de Kobaanashi.
Air Date: July 3, 2025, at 7:00 PM
Watch here

3. Countdown until 4 days: Osomatsu-san Season 2, Episodes 1 to 12.
Air Date: July 4, 2025, at 7:00 PM
Watch here

4. Countdown until 3 days: Osomatsu-san Season 2, Episodes 13 to 25.
Air Date: July 5, 2025, at 7:00 PM
Watch here

5. Countdown until 2 days: Osomatsu-san Season 3, Episodes 1 to 12.
Air Date: July 6, 2025, at 7:00 PM
Watch here

6. Countdown until 1 day: Osomatsu-san Season 3, Episodes 13 to 25.
Air Date: July 7, 2025, at 7:00 PM
Watch here

Season 4 Launch Details

The highly anticipated season 4 of Osomatsu-san will officially begin streaming on July 13, 2025, at midnight. The community can catch the new episodes on both Nico Nico Channel and Nico Nico Live. For fans looking to revisit the series, this re-broadcast initiative will serve as a perfect refresher!

How to Watch Season 4

- The launch will be available here:

Nico Nico Channel: Watch here
Nico Nico Live: Watch here

- For more details about season 4, visit the N Anime page:

Osomatsu-san Season 4

This countdown is a fabulous way to draw in new viewers while satisfying devoted fans eager for more Osomatsu-san. Don't miss out on this perfect opportunity to binge-watch the episodic antics of the Matsuno brothers before their new adventures begin!

© Fujio Akatsuka / Osomatsu-san Production Committee