4th Season
13 episodes · Jul 9, 2025
Join the Matsuno sextuplets and all the rest as they celebrate what will hopefully be a relaxing summer, if not for the fact that they're still broke and not even trying for employment.
Season Videos
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S4E1It's Starting Again
Jul 9, 202524mThe sextuplets spend a lazy Tanabata with friends and neighbors.
S4E2Watermelon Alien
Jul 16, 202524mThe sextuplets get a craving for watermelon, unbeknownst to an intergalactic invasion being underway.
S4E3Thunderstorms and Crew Cuts
Jul 23, 202524mA rainy day forces the sextuplets indoors, leading to a series of events involving Ichimatsu's bad new haircut.
S4E4Temple Festival
Jul 30, 202524mThe sextuplets and their friends get ready for a mysterious temple festival.
S4E5Rest / Fishing Hermit
Aug 6, 202524mAfter the festival, the sextuplets get some rest to ease their injuries. / Two fishermen (Todomatsu and Karamatsu) meet a fishing hermit (Jyushimatsu).
S4E6Fans and Time Machines
Aug 13, 202524mAfter 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.
S4E7Storytime, Jo
Aug 20, 202524mClassic 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.
S4E8Ichimatsu and the Thieving Cat
Aug 27, 202524mIchimatsu 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.
S4E9The Idiot Series
Sep 3, 202524mTelevision 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.
S4E10Iyami and the Shy Little Aliens
Sep 10, 202524mAfter an influx of intergalactic immigrants take residence in Japan, Iyami opens up a maid cafe with some shy multiplying aliens as the main attraction.
S4E11The Sextuplets Have the Same Dream
Sep 17, 202524mLike 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.
S4E12The End of Summer
Sep 24, 202524mThe 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.
S4E13The Matsuno Ten
Jun 13, 202623mIn a parody of 80s music show "The Best Ten", the cast perform retro-styled songs, themed to the sounds of the late Showa era's most popular musicians.