Mr. Osomatsu 4th season cover

Mr. Osomatsu 4th season

  • FINISHED
  • TV
  • 59
  • 2025
  • 13 EP

The sextuplets run amok for a fourth time! Now adults in their 20s, they are still unemployed, undertrained, and single…but there’s something lovable about Japan’s most famous sextuplets. As a new chaotic adventure begins, what’s next? New friends? New trouble? And perhaps a new side to the sextuplets? Let’s all laugh together with these brothers who are beyond any hope.

Notes:

- Initially meant to air its episode 13 on October 1st, 2025, though instead aired an episode 12.5. After airing episode 12.5, the production stated the actual episode 13 was in production, however delayed indefinitely.

- The 13th episode was later announced as a part of the Osomatsu-san 10th anniversary event in 2026, where it first received a limited theatrical pre-screening between June 6th to June 11th, with a later early streaming release taking place from June 12th. It was then finally broadcast on June 13th, 2026.

  1. Mr. Osomatsu 4th season episode 1 01

    It's Starting Again

  2. Mr. Osomatsu 4th season episode 2 02

    Watermelon Alien

  3. Mr. Osomatsu 4th season episode 3 03

    Thunderstorms and Crew Cuts

  4. Mr. Osomatsu 4th season episode 4 04

    Temple Festival

  5. Mr. Osomatsu 4th season episode 5 05

    Rest / Fishing Hermit

  6. Mr. Osomatsu 4th season episode 6 06

    Fans and Time Machines

  7. Mr. Osomatsu 4th season episode 7 07

    Storytime, Jo

  8. Mr. Osomatsu 4th season episode 8 08

    Ichimatsu and the Thieving Cat

  9. Mr. Osomatsu 4th season episode 9 09

    The Idiot Series

  10. Mr. Osomatsu 4th season episode 10 10

    Iyami and the Shy Little Alien

  11. Mr. Osomatsu 4th season episode 11 11

    The Sextuplets Have the Same Dream

  12. Mr. Osomatsu 4th season episode 12 12

    The End of Summer

  13. Mr. Osomatsu 4th season episode 13 13

    The Matsuno Ten

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  1. OP1

    Osomatsu-san no Bomba Sheeeh!

    DA PUMP

    EP 1-
  2. ED1

    Buddy

    Hitomi from Atarayo, Matsuno-ke 6 Kyoudai

    EP 1-

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