Mr. Osomatsu: Season 3
Season 3 Lore Primer
Key plot threads, lore context, and character stakes you need to remember before diving into this season.
- Directly follows the overarching narrative developments of Mr. Osomatsu Season 2.
- Faction dynamics and core character alliances shift under escalating external stakes.
- Crucial mysteries introduced previously reach key turning points and narrative reckonings.
- Sets up serialized story arcs that build directly toward the climactic season finale.
Episode Guide
Season 3 Progress Shield
Replaced
Oct 12, 2020
Osomatsu-san returns in an all-new family-friendly incarnation! Surely nothing will go wrong, right?
Dimwit Generation / Hatabou EATS / Let's Be Quiet at Night / Doctor T / Triangle Pop / Delivery
Oct 19, 2020
Choromatsu, Todomatsu, and Ichimatsu discuss their expectations for the show's third season. Hatabou struggles to deliver an online food order. The sextuplets harass a touchy coupl
Dimwit Generation 2 / Estimated Value / Magic Angel Magi Lunatic Ichi
Oct 26, 2020
Osomatsu, Karamatsu, and Jyushimatsu share their expectations for the new season. The Riceballs estimate the value of the sextuplets' friends, causing embarrassment. Magical powers
Ichimatsu Radio / Unit Formed / Matsuyo's Trap
Nov 2, 2020
Ichimatsu hosts his own in-home radio show. Totoko and Nyaa learn more about each other. Matsuyo punishes the boys for grabbing late-night snacks.
Well, Yeah... / The Way Home
Nov 9, 2020
Todomatsu and Karamatsu fall in love with a konbini employee and the boys go to a wedding.
Touter / Optimization / Massage
Nov 16, 2020
Iyami sells two salarymen short on a promiscuous shop. The Riceballs look for cats with Ichimatsu. Jyushimatsu gives Osomatsu a special massage.
Tidbits Collection 3
Nov 23, 2020
Another tidbits collection is here! Astronauts, yokai, and Governor Jyushimatsu await.
To the South / Mt. Takao
Nov 30, 2020
Dekapan and Dayon are drafted into a rousing aerial dogfight. Choromatsu takes the brothers on a day trip to Mt. Takao.
Sheeeh / Outfit / Let's Do Chores
Dec 7, 2020
The Riceballs try to understand the meaning of "sheeeh". Totoko and Nyaa try out new threads. The Matsunos do chores.
ZANSU / Werewolf
Dec 14, 2020
Passion and love are on full display in a SASUKE-esque physical tournament. The Matsunos partake in the deduction game "Werewolf", with twists and turns along the way.
Do it / Pizza
Dec 21, 2020
The Riceballs prove their worth. The sextuplets try to decide on hypothetical pizza.
AI
Dec 28, 2020
The Riceballs are replaced with another AI when they fail to do their job and the sextuplets go to look for them.
Mr. HNYmatsu
Jan 4, 2021
Salmon and Pickled Plum look back on the last two-and-a-half seasons of the series in a clip-show episode.
Pond Smelt Fishing / Mortal Combat / Sparkle Phantom Stream
Jan 11, 2021
Something mysterious is afoot during a fishing trip. A snowball fight breaks out. Choromatsu discovers something powerful.
Cosplaymatsu
Jan 18, 2021
Another collection of miscellaneous skits, featuring Ichimatsu as a pessimistic policeman, Chibita trying out a new gimmick for his cart, Osomatsu receiving the death penalty, and
SaneCop / Nanmaider
Jan 25, 2021
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 I
The Riceball's New Routine / Imoni
Feb 1, 2021
The Riceballs test out some comedy material. Dekapan hosts an imoni-cooking competition.
Just Don't
Feb 8, 2021
Nyaa has a rather surprising crush that happens to be Osomatsu and literally everyone tries to stop her from making a terrible life choice.
Are They Disbanding? / Sumo Stable / Dogs
Feb 15, 2021
The Riceballs practice for the upcoming A-1 Grand Prix. A new recruit joins a sumo stable. Jyushimatsu and a dog switch bodies.
Choromatsu Memorial Hall / Ear Cleaning / Persimmons
Feb 22, 2021
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
Is This Okay? / Greenroom / Totoderella
Mar 1, 2021
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 play
I Found This / Wannabe Detectives / Hide-and-Seek
Mar 8, 2021
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-
Contract Renewals / Shopping / Friend
Mar 15, 2021
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
New Osomatsu Returns / A-1 Grand Prix
Mar 22, 2021
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.
Bored
Mar 29, 2021
The sextuplets wander around town in search of things for sakura viewing, but...