
The first animated adaptation of the 1960s gag manga series, focusing on the adventures of the identical 10-year-old Matsuno sextuplets, led by the titular brother…
Animation, Comedy • Series • 1966 • 1 season
Starring: Kazue Tagami, Midori Katō, Keiko Yamamoto

S1 E1 - Leave the House-Sitting to the Dog / The Beggar Robot
Osomatsu and Choromatsu mind Chibita as babysitters, but grow bored and decide to have a mysterious dog take the heed instead. / Dekapan creates a robot powered by spare change that inadvertently leads to disaster in the hands of the sextuplets.
Feb 5, 1966 • 25m

S1 E2 - Iyami's Fishing Pond / The 40 Thieves
Iyami attempts to con Osomatsu, Choromatsu, and Chibita out of their hard-earned money at his fishing pond with a rare fish that gives them all their money back if caught. / Chibita plays the role of the leader of a gang of thieves who target Osomatsu for discovering their misdeeds.
Feb 12, 1966 • 25m

S1 E3 - Chibita's Stray Cat Strategy / A Thief Fell From The Sky
Totoko's grandpa enlists the help of the sextuplets to stop Chibita and his gang of feral cats from attacking the fish store. / Iyami and Chibita fly around town in a helicopter to cause mischief amongst the locals.
Feb 19, 1966 • 25m

S1 E4 - The Helpful Robot / Iyami's Cleaning Store
A housework robot (shaped like Chibita) causes havoc amongst the Matsuno family when he malfunctions. / Iyami runs a scam out of a laundromat to catastrophic failure.
Feb 26, 1966 • 25m

S1 E5 - There's the Shortcut / Laughing Costs 1 Million Yen!
Iyami and Chibita feign construction workers to scam the sextuplets out of their money by making a paid shortcut to school. / A camera company offers a cash prize for whoever can photograph a face-making man without any made faces, leading the sextuplets and Chibita to try to claim the reward.
Mar 5, 1966 • 25m

S1 E6 - Osomatsu Targeted / Chibita's Martial Arts
Spooky things seem to be happening around town, leading the sextuplets to discover a secret of their own appearance. / Chibita challenges the brothers to a martial arts battle.
Mar 12, 1966 • 25m

S1 E7 - The Magical Tea Kettle / The Angry Superman
Iyami scams the sextuplets with a magic kettle, actually utilizing Chibita as the secret inside. / Chibita and the shapely-mouthed Bokeo get revenge on the sextuplets for harming their frog friend.
Mar 19, 1966 • 25m

S1 E8 - It's All Fine Until You Take Off His Hat / Boar Hunting
Chibita appears alongside Totoko wearing a strange hat that, when removed, changes his temperament from good to bad, leading to chaos amongst the Matsunos. / Chibita goes boar hunting and encounters the sextuplets and Iyami.
Mar 26, 1966 • 25m

S1 E9 - Iyami the Dentist / Defeat the Mosquitoes' Enemies!
Osomatsu visits dentist Iyami's office for a toothache, but due to an unpaid bill, assists him in fixing up the mouth of Dekapan's crocodilian "son". / After Chibita's mosquito colony is destroyed by the sextuplets, he and Iyami create a watermelon-shaped bomb to enact revenge.
Apr 2, 1966 • 25m

S1 E10 - I am Chibita, The Giant! / Counterattack Operation Pepen
Chibita, with the help of his scientist uncle, devise a plan to shrink the sextuplets down to flea size so that he will no longer be shorter than them. / A roaming minstrel and Chibita team up to enact revenge on the sextuplets with their army of cats.
Apr 9, 1966 • 25m

S1 E11 - Osomatsu-kun Gets Adopted / Chibita the Invisible Man
A wealthy couple pay the sextuplets' parents to loan one of their boys out to them as a paid son, but the love they have for Osomatsu and Choromatsu is much too young for them. / Chibita and the brothers drink an invisibility potion and cause mischief.
Apr 16, 1966 • 25m

S1 E12 - The Cutie Who Moved Close By / Rampage of the Smog Family
A new girl moves into the neighborhood, and the sextuplets try to put the moves on her while confusing her dad for their eerily-resembling dog. / A crime family that Chibita is a part of has business with the sextuplets, climaxing in a rainy nighttime brawl.
Apr 23, 1966 • 25m

S1 E13 - The Opposite-Head Experiment / Iyami the Designer
An apple-headed doctor conducts an experiment on the sextuplets, but his seemingly strange mood swings are more than meets the eye. / Iyami works as a bespoke clothing designer for the Matsunos, but suspicions are aroused when the family's Children's Day koinobori goes missing.
Apr 30, 1966 • 25m

S1 E14 - Iyami's Ninja Methods / Keke, I'm the Class President!
Ninjutsu master Iyami enlists the help of his disciples Chibita and Moguramaru to get revenge on the sextuplets. / Chibita attempts to thwart Totoko's run as Class President.
May 7, 1966 • 25m

S1 E15 - Chibita, Did You Turn Into a Dog? / The Suspicious Transfer Student
Chibita takes the place of Dekapan's trained dog "son" when ringmaster Iyami buys him for his circus. / A student with a padlocked hat transfers to the sextuplets' school, leading to a mystery of his identity.
May 14, 1966 • 25m

S1 E16 - The Time Machine Sends Us to the Stone Age / The Junk Strategy
The Matsunos take a trip in a wacky inventor's time machine to the age of the dinosaurs, where they meet their friends' prehistoric counterparts. / Neighbors Iyami and Chibita go to war with the Matsunos over trash disposal.
May 21, 1966 • 25m

S1 E17 - Chika-chan and Chibita / Don't Wake The Sleeping Child
Chibita falls in love with snooty Chikako, but the sextuplets' faulty attempts at woo cause more than trouble for the little lovebirds. / The sextuplets watch over a sleepwalking boy who becomes violent when awoken.
May 28, 1966 • 25m

S1 E18 - Suspicious Presents / See Doctor Chibita For Tooth Decay
A Santa Claus-like figure arrives in the town, in actuality a persona put on by burglar Moguramaru to hide stolen goods. / Deranged dentist Chibita enacts periodontal violence against people with better teeth than him.
Jun 4, 1966 • 25m
S1 E19 - Is Chibita a Good Boy? / Chibita's Girlfriend
The sextuplets become victims of a vindictive clothesless Chibita, who tries to steal their clean clothes. / The Matsunos offer Dekapan a place for his pig "daughter" to stay, but Chibita falls in love with her without knowing she isn't human.
Jun 11, 1966 • 25m
S1 E20 - Iyami the Rude Guest / Chibita the Sailor
The sextuplets' father invites work friend Iyami over for dinner, but chaos ensues in response to his disruptive behavior. / Chibita attempts to sneak onto an ocean liner under the guise of a sailor.
Jun 18, 1966 • 25m
S1 E21 - Iyami's French Eaves / Dad Ran Away
Iyami runs a "genuine" French restaurant with Chibita, and receives criticism for his poor service and lack of research. / Mr. Matsuno resigns from his position as patriarch, and runs away.
Jun 25, 1966 • 25m
S1 E22 - Iyami's Diamond Dentures / Forward! Cat Troopers
Ultra-rich Iyami accidentally breaks his bejeweled dentures, so with the help of his assistant Chibita, he tries to pin the blame on the sextuplets. / Chibita's army of cats ransack the town's oden vendors of his most favorite food, leading Iyami and the sextuplets to take him out.
Jul 2, 1966 • 25m

S1 E23 - The Suspiscious Mynah Bird / Chibita's Lullaby
A mynah bird settles into the sextuplets' birdhouse village, but is harboring a less-than-desired guest in its home. / Chibita becomes a foster mother for a foundling.
Jul 9, 1966 • 25m
S1 E24 - Get That Lousy Fugitive! / I'm Rich, da jo
Jul 16, 1966 • 25m
S1 E25 - The Super-Cheap Old Man / Hoe Hoe, Mountain Climbing
Jul 23, 1966 • 25m
S1 E26 - The Fortune-Telling Machine from France / We'll Do Anything in Six Rounds!
Jul 30, 1966 • 25m
S1 E27 - Dad's Robot Strategy / Stop the Lying Duo!
Aug 6, 1966 • 25m
S1 E28 - Rickety Camp Riot / Be a Security Guard, Osomatsu-kun!
Aug 13, 1966 • 25m
S1 E29 - The Sextuplets Become Seven / Promotional Sales War
Aug 20, 1966 • 25m
S1 E30 - Go For It, Kumamatsu / Chibita's a Pet
Aug 27, 1966 • 25m
S1 E31 - Goronyan, the Meteorologist / Lonely Kappataro
Sep 3, 1966 • 25m
S1 E32 - Say Not the Truth / The ¥100,000 Ghost Phone
Sep 10, 1966 • 25m
S1 E33 - Iyami's Fake Beach House / Chibita's Big Circus
Sep 17, 1966 • 25m
S1 E34 - Chibita Walks the Tightrope / Osomatsu is a Bad Kid
Sep 24, 1966 • 25m
S1 E35 - I Hate This Naughty Dog! / The Cries of a Child Summon the Ant Troops
Oct 1, 1966 • 25m
S1 E36 - Chibita's Oden Neurosis / Trick the Tanuki!
Oct 8, 1966 • 25m
S1 E37 - Papa, Please Don't Smoke / Chibita Soars Through the Skies
Oct 15, 1966 • 25m
S1 E38 - Only Chibita Has Filial Piety / Golf is Expensive, jo
Oct 22, 1966 • 25m
S1 E39 - Dekapan's Big Horse Race
Oct 29, 1966 • 25m
S1 E40 - It's a First-Class Car Race, jo / Chibita the Zookeeper
Nov 5, 1966 • 25m
S1 E41 - A Fight Over a Flower / Were You Kidnapped, Osomatsu-kun?
Nov 12, 1966 • 25m
S1 E42 - I've Quit Safecracking!
Safecracker Chibita, released on parole, mustn't break into another safe or else he'll be back behind bars. But what will happen when he must use his talents to save a life?
Nov 19, 1966 • 25m
S1 E43 - The Grand Prix Elimination Race / The Search for Chibita's Parents
Nov 26, 1966 • 25m
S1 E44 - Let's Try to Ski for Free
Dec 3, 1966 • 25m
S1 E45 - Please Return My Bonus! / Go For It, Kumamatsu
Dec 10, 1966 • 25m
S1 E46 - The Arsonist Loves Oden / Fighting Robot Rampage
Dec 17, 1966 • 25m
S1 E47 - A Dreadful Christmas Season-zansu / The Sextuplets Become Seven
Dec 24, 1966 • 25m
S1 E48 - A Guide to a Bear Parent and Child / Dekapan Olympics
Dec 31, 1966 • 25m
S1 E49 - Totoko-chan's New Years' Card / Laughing Costs 1 Million Yen!
Jan 7, 1967 • 25m
S1 E50 - Skiiing in a French Fashion / I Don't Need the Magic Lamp Anymore
Jan 14, 1967 • 25m
S1 E51 - The Scary Old Hag / Speak Not the Truth
Jan 21, 1967 • 25m
S1 E52 - The Time Machine Sends Us to the Stone Age / Iyami's French Eaves
Jan 28, 1967 • 25m
S1 E53 - Keke, I'm the Great Detective / Leave the House-Sitting to the Dog
Feb 4, 1967 • 25m
S1 E54 - My Head Shines the Brightest in the World / Papa, Please Don't Smoke
Feb 11, 1967 • 25m
S1 E55 - Headed to Chibita's Jungle / Golf is Expensive, jo
Feb 18, 1967 • 25m
S1 E56 - Chibitaro, Born From a Peach / The Grand Prix Elimination Race
Feb 25, 1967 • 25m
S1 E57 - Kekeke, a Surprise Aerial Attack / Special Program: "We Are Sextuplets"
Mar 4, 1967 • 25m
S1 E58 - I've Quit Safecracking!
Mar 11, 1967 • 25m
S1 E59 - Let's Try to Ski for Free
Mar 18, 1967 • 25m
S1 E60 - Dekapan's Big Horse Race
Mar 25, 1967 • 25m
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Osomatsu-kun
The first animated adaptation of the 1960s gag manga series, focusing on the adventures of the identical 10-year-old Matsuno sextuplets, led by the titular brother himself. Aside from the Matsunos, the series also showcases the tales of their rival Chibita, and the constantly job-switching conman Iyami.
Animation, Comedy • TV Series • 1966