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The Best Episodes of Mr. Osomatsu Season 4

Every episode of Mr. Osomatsu Season 4 ranked from best to worst. Discover the Best Episodes of Mr. Osomatsu Season 4!

Sequel/spin-off of the gag manga classic Osomatsu-kun, entailing the lives of the now 20-something NEET virgin Matsuno sextuplets and the bizarre adventures they find themselves into in the modern day.

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Episode Rankings

  1. #1 Fan Favorite
    Mr. Osomatsu Season 4 Episode 1 - It's Starting Again
    0.0/10(0 votes)

    #1 - It's Starting Again

    S4:E1

    The sextuplets spend a lazy Tanabata with friends and neighbors.

    Director:Ryosuke Azuma
    Writer:Shu Matsubara

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  2. Mr. Osomatsu Season 4 Episode 2 - Watermelon Alien
    0.0/10(0 votes)

    #2 - Watermelon Alien

    S4:E2

    The sextuplets get a craving for watermelon, unbeknownst to an intergalactic invasion being underway.

    Directors:Tsuneo Suzuki, Takeshi Nakano
    Writer:Shu Matsubara

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  3. Mr. Osomatsu Season 4 Episode 3 - Thunderstorms and Crew Cuts
    0.0/10(0 votes)

    #3 - Thunderstorms and Crew Cuts

    S4:E3

    A rainy day forces the sextuplets indoors, leading to a series of events involving Ichimatsu's bad new haircut.

    Directors:Yuki Morita, Ippei Ichii
    Writer:Shu Matsubara

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  4. Mr. Osomatsu Season 4 Episode 4 - Temple Festival
    0.0/10(0 votes)

    #4 - Temple Festival

    S4:E4

    The sextuplets and their friends get ready for a mysterious temple festival.

    Director:Nene Futamura
    Writer:Shu Matsubara

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  5. Mr. Osomatsu Season 4 Episode 5 - Rest / Fishing Hermit
    0.0/10(0 votes)

    #5 - Rest / Fishing Hermit

    S4:E5

    After the festival, the sextuplets get some rest to ease their injuries. / Two fishermen (Todomatsu and Karamatsu) meet a fishing hermit (Jyushimatsu).

    Director:Kentaro Mizuno
    Writer:Shu Matsubara

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  6. Mr. Osomatsu Season 4 Episode 6 - Fans and Time Machines
    0.0/10(0 votes)

    #6 - Fans and Time Machines

    S4:E6

    After their fan breaks, the sextuplets set off on a time travel mission to recover the fan when it worked, with many failed retrievals made along the way.

    Director:Yusaku Kikuchi
    Writer:Shu Matsubara

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  7. Mr. Osomatsu Season 4 Episode 7 - Storytime, Jo
    0.0/10(0 votes)

    #7 - Storytime, Jo

    S4:E7

    Classic children's tales retold with an Osomatsu bent. A Dog of Flanders with many ludicrous variants of Nello and Patrache's deaths, Snow White has a mysterious power, Hansel and Gretel get diplomatic, and several cranes repay their debts to one very generous old man.

    Director:Ryosuke Azuma
    Writer:Shu Matsubara

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  8. Mr. Osomatsu Season 4 Episode 8 - Ichimatsu and the Thieving Cat
    0.0/10(0 votes)

    #8 - Ichimatsu and the Thieving Cat

    S4:E8

    Ichimatsu tries to domesticate a stray cat known for its human-like thievery, but runs into trouble when his new buddy falls back into their old ways.

    Director:Yusaku Kikuchi
    Writer:Shu Matsubara

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  9. Mr. Osomatsu Season 4 Episode 9 - The Idiot Series
    0.0/10(0 votes)

    #9 - The Idiot Series

    S4:E9

    Television parodies featuring the Osomatsu cast. The older set does some calisthenics with disastrous results, Jyushipi and Choropi conjure up some magical cooking, the sextuplets and their parents involve themselves in a yakuza movie-style argument, a sextet of singing fungi try to escape their fate of harvesting, and the Idiot Brothers, Idiot Sisters, and Idiot Married Couple partake in a manzai sketch comedy bit.

    Directors:Yuki Morita, Itoko Nagai
    Writer:Shu Matsubara

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  10. Mr. Osomatsu Season 4 Episode 10 - Iyami and the Shy Little Aliens
    0.0/10(0 votes)

    #10 - Iyami and the Shy Little Aliens

    S4:E10

    After an influx of intergalactic immigrants take residence in Japan, Iyami opens up a maid cafe with some shy multiplying aliens as the main attraction.

    Director:Hitomi Ezoe
    Writer:Shu Matsubara

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  11. Mr. Osomatsu Season 4 Episode 11 - The Sextuplets Have the Same Dream
    0.0/10(0 votes)

    #11 - The Sextuplets Have the Same Dream

    S4:E11

    Like how some twins can feel phantom pains, the sextuplets occasionally have the same dream. Here are two surreal dreams about bodily transformation that the brothers have.

    Director:Ryosuke Azuma
    Writer:Shu Matsubara

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  12. Mr. Osomatsu Season 4 Episode 12 - The End of Summer
    0.0/10(0 votes)

    #12 - The End of Summer

    S4:E12

    The end of summer has arrived, with Chibita deciding to close up his oden stall and pursue a charitable cause. Osomatsu, frustrated with this sudden change, angrily pressures his childhood buddy to stay.

    Directors:Nene Futamura, Yuki Morita, Shigeru Fukase
    Writer:Shu Matsubara

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Season 4 Ratings Summary

"It's Starting Again" is the best rated episode of "Mr. Osomatsu" season 4. It scored /10 based on 0 votes. Directed by Ryosuke Azuma and written by Shu Matsubara, it aired on 7/9/2025. This episode is rated 0.0 points higher than the second-best, "Watermelon Alien".