Seasons & episodes
S3 · E16SaneCop / Nanmaider 2021-01-25 · 25 min
Sanematsu has been resurrected to serve the public trust, protect the innocent, and uphold the law. Meanwhile, the sextuplets have become fully functional members of society, but Iyami and their father suspect something intergalactic at hand with the power of a strange pair of sunglasses.
S3 · E17The Riceball's New Routine / Imoni 2021-02-01 · 25 min
The Riceballs test out some comedy material. Dekapan hosts an imoni-cooking competition.
S3 · E18Just Don't 2021-02-08 · 25 min
Nyaa has a rather surprising crush that happens to be Osomatsu and literally everyone tries to stop her from making a terrible life choice.
S3 · E19Are They Disbanding? / Sumo Stable / Dogs 2021-02-15 · 25 min
The Riceballs practice for the upcoming A-1 Grand Prix. A new recruit joins a sumo stable. Jyushimatsu and a dog switch bodies.
S3 · E20Choromatsu Memorial Hall / Ear Cleaning / Persimmons 2021-02-22 · 25 min
The grand unveiling of the Choromatsu Memorial Hall is underway, with Todomatsu taking a tour. Osomatsu gives Karamatsu an ear cleaning. A terminally-ill Hatabou waits for the last persimmon to fall off the tree.
S3 · E21Is This Okay? / Greenroom / Totoderella 2021-03-01 · 25 min
Choromatsu and Ichimatsu contemplate the meaning of "a long time" while hanging out at the konbini. The Riceballs converse with other competitors in the A-1 Grand Prix. Totoko plays Cinderella, falling for Prince Nyaa.
S3 · E22I Found This / Wanabe Detectives / Hide-and-Seek 2021-03-08 · 25 min
Jyushimatsu finds a ¥100 piece. Oso and Juicy are two detectives whose dramatic skills are better than their investigative techniques. The sextuplets play a ludicrous game of hide-and-seek.
S3 · E23Contract Renewals / Shopping / Friend 2021-03-15 · 25 min
The characters renew their contracts with the production committee, but the sextuplets have reservations about the season's success. The sextuplets go clothes shopping. Choromatsu meets with a high school friend, and reminisces about a dark secret they share.
S3 · E24New Osomatsu Returns / A-1 Grand Prix 2021-03-22 · 25 min
After his arrest, New Osomatsu takes his revenge on the loser he replaced, culminating in a terrifying battle. The Riceballs perform their routine at the A-1 Grand Prix.
S3 · E25Bored 2021-03-29 · 25 min
The sextuplets wander around town in search of things for sakura viewing, but...
S4 · E1It's Starting Again 2025-07-09 · 24 min
The sextuplets spend a lazy Tanabata with friends and neighbors.
S4 · E2Watermelon Alien 2025-07-16 · 24 min
The sextuplets get a craving for watermelon, unbeknownst to an intergalactic invasion being underway.
S4 · E3Thunderstorms and Crew Cuts 2025-07-23 · 24 min
A rainy day forces the sextuplets indoors, leading to a series of events involving Ichimatsu's bad new haircut.
S4 · E4Temple Festival 2025-07-30 · 24 min
The sextuplets and their friends get ready for a mysterious temple festival.
S4 · E5Rest / Fishing Hermit 2025-08-06 · 24 min
After the festival, the sextuplets get some rest to ease their injuries. / Two fishermen (Todomatsu and Karamatsu) meet a fishing hermit (Jyushimatsu).
S4 · E6Fans and Time Machines 2025-08-13 · 24 min
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.
S4 · E7Storytime, Jo 2025-08-20 · 24 min
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.
S4 · E8Ichimatsu and the Thieving Cat 2025-08-27 · 24 min
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.
S4 · E9The Idiot Series 2025-09-03 · 24 min
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.
S4 · E10Iyami and the Shy Little Aliens 2025-09-10 · 24 min
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.
S4 · E11The Sextuplets Have the Same Dream 2025-09-17 · 24 min
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.
S4 · E12The End of Summer 2025-09-24 · 24 min
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.