Osomatsu-kun
Season 1
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.
Where to Watch Osomatsu-kun • Season 1
60 Episodes
- Leave the House-Sitting to the Dog / The Beggar Robot
E1Leave the House-Sitting to the Dog / The Beggar RobotOsomatsu 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. - Iyami's Fishing Pond / The 40 Thieves
E2Iyami's Fishing Pond / The 40 ThievesIyami 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. - Chibita's Stray Cat Strategy / A Thief Fell From The Sky
E3Chibita's Stray Cat Strategy / A Thief Fell From The SkyTotoko'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. - There's the Shortcut / Laughing Costs 1 Million Yen!
E5There'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. - It's All Fine Until You Take Off His Hat / Boar Hunting
E8It's All Fine Until You Take Off His Hat / Boar HuntingChibita 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. - Iyami the Dentist / Defeat the Mosquitoes' Enemies!
E9Iyami 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. - I am Chibita, The Giant! / Counterattack Operation Pepen
E10I am Chibita, The Giant! / Counterattack Operation PepenChibita, 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. - Osomatsu-kun Gets Adopted / Chibita the Invisible Man
E11Osomatsu-kun Gets Adopted / Chibita the Invisible ManA 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. - The Cutie Who Moved Close By / Rampage of the Smog Family
E12The Cutie Who Moved Close By / Rampage of the Smog FamilyA 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. - The Opposite-Head Experiment / Iyami the Designer
E13The Opposite-Head Experiment / Iyami the DesignerAn 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. - Chibita, Did You Turn Into a Dog? / The Suspicious Transfer Student
E15Chibita, Did You Turn Into a Dog? / The Suspicious Transfer StudentChibita 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. - The Time Machine Sends Us to the Stone Age / The Junk Strategy
E16The Time Machine Sends Us to the Stone Age / The Junk StrategyThe 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. - Chika-chan and Chibita / Don't Wake The Sleeping Child
E17Chika-chan and Chibita / Don't Wake The Sleeping ChildChibita 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. - Suspicious Presents / See Doctor Chibita For Tooth Decay
E18Suspicious Presents / See Doctor Chibita For Tooth DecayA 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. - Is Chibita a Good Boy? / Chibita's GirlfriendE19
Is Chibita a Good Boy? / Chibita's GirlfriendThe 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. - Iyami's Diamond Dentures / Forward! Cat TroopersE22
Iyami's Diamond Dentures / Forward! Cat TroopersUltra-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.
