The fourth season of "Osomatsu-san" continues the chaotic misadventures of the six identical Matsuno brothers as they stumble through everyday life with their usual laziness, sibling rivalry, and absurd antics. Despite their attempts (or lack thereof) to improve themselves, they remain unemployed, unmotivated, and endlessly troublesome, much to the frustration of those around them. The series blends surreal humor, pop culture parodies, and the occasional heartfelt moment as the brothers navigate their bizarre world.

Mr. Osomatsu - S04
HD
Overview:
The fourth season of "Osomatsu-san" continues the chaotic misadventures of the six identical Matsuno brothers as they stumble through everyday life with their usual laziness, sibling rivalry, and absurd antics. Despite their attempts (or lack thereof) to improve themselves, they remain unemployed, unmotivated, and endlessly troublesome, much to the frustration of those around them. The series blends surreal humor, pop culture parodies, and the occasional heartfelt moment as the brothers navigate their bizarre world.
Aired:Jul 09, 2025
Duration:25m
Episodes:88
Networks:HTB, TV Tokyo, TV Aichi, TVQ, TV Osaka, TSC
Country: Japan
Seasons (4)
Episodes (13)
1. It's Starting Again2. Watermelon Alien3. Thunderstorms and Crew Cuts4. Temple Festival5. Rest / Fishing Hermit6. Fans and Time Machines7. Storytime, Jo8. Ichimatsu and the Thieving Cat9. The Idiot Series10. Iyami and the Shy Little Aliens11. The Sextuplets Have the Same Dream12. The End of Summer13. The Matsuno Ten
Characters & Voice Actors

CharacterOsomatsu Matsuno (voice)
Voice ActorTakahiro Sakurai

CharacterIchimatsu Matsuno (voice)
Voice ActorJun Fukuyama

CharacterTotoko (voice)
Voice ActorAya Endo

CharacterKaramatsu Matsuno (voice)
Voice ActorYuichi Nakamura

CharacterMatsuzou Matsuno (voice)
Voice ActorKazuhiko Inoue

CharacterTodomatsu Matsuno (voice)
Voice ActorMiyu Irino

CharacterChoromatsu Matsuno (voice)
Voice ActorHiroshi Kamiya

CharacterChibita (voice)
Voice ActorSachi Kokuryu














