Season 1

The gaudy and untruthful Iyami comes to town, fashioning himself a salesman. After a botched robbery, he inadvertently becomes victim to teeth-regrowing medicine.

After harassing Dayon the fortune-teller, Iyami awaits three bad things to befall him that day, as per Dayon's prediction.

Iyami runs a shady clinic, but is pushed into failure by Dekapan's much more ethical office. To get revenge, him and Chibita cook up a transformation potion.

Chibita is training to become Prima Donna in Iyami's ballet studio's big show. When one thing leads to another and he's ousted from his role by Osomatsu, Chibita throws away his heart (literally) and causes mischief for the big recital.

Dekapan visits the sextuplets with his daughter -- not a human, but a pig. Osomatsu and Choromatsu cook up a scheme to trick Chibita, who has fallen in love with her not realizing what she truly is.

After dining and dashing for the umpteenth time, Iyami plans a scheme to fake his death and use the grievance money to skip town.

Chibita finds an abandoned baby, but runs into financial difficulties alongside the discovery that the mother wants her baby back.

After he graduates, Chibita is caught between the expectations of being a good boy or being a troublemaker. With the help of Iyami's newly-developed personality-switching hat, he keeps a relatively clean appearance, but trouble ensues once he takes it off.

Iyami and Chibita sell used junk, but when they buy a wooden cabinet from the Matsunos that's worth a fortune, a battle ensues for who gets to claim the cash.

A candle-watching shinigami comes to town, and Iyami enlists his help in culling Osomatsu, who has recently come down with a life-threatening illness.

Iyami and Chibita, prison inmates, make a grand escape from their sentence, but only one problem is in their way, aside from the police on their tail: they're chained together at the waist.

Iyami, an amateur author who lives in poverty, strikes it rich when he sends in manuscripts that expose the many strange things about the people in town.

Lord Chibita, along with second-in-command Iyami, set up their Edo period-style headquarters in town, with the young Lord falling head-over-heels for Totoko.

The sextuplets get temporarily kidnapped and discover a plot for aliens to take over the world. Osomatsu and Choromatsu get replaced, and it's up to the family to find out who the real kids are.

Iyami saves Osomatsu's life.

Chibita hatches a plan with his scientist uncle to shrink the sextuplets to make him bigger in comparison.

After getting framed for one of Iyami's tricks, Hatabou tries to stand up for himself.

Chibita is a former safecracker who's trying to go straight, but a detective, Iyami, keeps hounding him.

Dekapan invents a mysterious liquid that causes anyone doused with it and who bumps heads to switch minds, leading to all sorts of chaos for the neighbors and their plans.

Iyami and Chibita build a bomb.

Chibita takes care of a cat.

A mysterious gunslinger, Chibita, shows up at the Dekapan Ranch just in time to drive off six bullying brothers.

Rich guy Iyami's diamond dentures go missing, and it's up to Detective Hatabou to find the lost jewels and the culprit behind the thieving.

Totoko becomes infected with personality-altering becteria from Iyami's body.

After Iyami steals all of an oden vendor's stock and pins it on oden-loving Chibita, the tortured boy sets his aim on the sextuplets and Iyami in a slasher-style game of revenge.

The Sextuplets try to help their Dad stop smoking.

Dekapan and Hatabou try to make offerings to a stone god, while everyone else enjoys the good life.

The Sextuplets and Totoko go camping.

Iyami starts an insurance company.

Chibita seeks vengeance through ninjutsu.

Chibita's kindness is rewarded by the spirit of a rose.

When a new girl moves next door to the Sextuplets, Totoko is deposed as the neighborhood's number one idol.

Iyami and Chibita are trapeze artists. Totoko the ringmaster's daughter, comes between them.

Exhausted and feeling unloved by his six sons, Dad runs away from home and pledges to raise fellow runaway Chibita.

Minister Iyami plots to assassinate Princess Totoko so his son, Prince Hatabou, can take over.

Iyami and Chibita become superheroes.

Chibita sets out to find lost treasure, but soon gets captured by pirates.

Iyami and Chibita pretend to be a poor elderly couple to mooch off of Osomatsu's family.

When Hatabou commits seppuku Chibita plots his revenge on Iyami.

The Sextuplets are froced to babysit their Dad's Boss' son.

Chibita is a bellboy working at the Dayon Hotel when he takes in Totoko, a poor girl who's lost her beautiful singing voice.

Iyami and Chibita swindle Dayon.

Everyone competes in a wacky car race to sweep the wealthy Totoko off her feet.

French director Iyami and his cameraman Chibita travel to Japan to film a documentary on the "real Japan."

The Sextuplets go skiing with their instructor Iyami.

Detective Chibita is transferred to a town where oden is prohibited, but is sold in a black market controlled by a shady character.

Iyami wins the lottery from a ticket he made Chibita purchase a year earlier, but he only has one day left to collect.

The Sextuplets are sent to a zen temple to be straightened out by Iyami, a monk who's in it for the money.

Iyami is a police officer who isn't really good at his job.

Chibita finds a baby T-Rex that he wants to keep as a pet.

Osomatsu's family goes on vacation to an inn that they realize is too expensive for them.

Hatabou creates an explosive lie detector for Iyami.

Chibita has to decide whether Iyami or Osomatsu's Dad will get a promotion.

A woman falls in love with Iyami, but she doesn't know how poor he is.

Dad and the boys run into trouble when they encounter Iyami on the road.

Iyami tries to change all the restaurants in town to oden shops in order to please the mega-rich Chibita.

Iyami gets to pilot a rickety plane to Hawaii.

Osomatsu gets adopted by Dekapan.

Presidential candidate Iyami hires hitman, Hatabou, to take out his rival, Dayon.

Iyami and Chibita get revenge on the Sextuplets with remote-controlled model airplanes.

Chibita is smitten with Jajako, Hatabou's cousin, but she hates his favorite thing in the world, oden.

When Dad loses his bonus, suspicion quickly falls on Iyami, who's actually turned over a new leaf.

Iyami and Chibita duplicate the sextuplets.

The powerful, rambunctious Chibita Songoku is imprisoned under a rock for 500 years before being rescued by an ambitious monk, Iyami.

Iyami tries to steal Totoko Buddha's sutras so he can kickstart his own religion, but they're already held as collateral by moneyleader and Chibita's former master, Hatabou.

Nasty teacher Iyami is tormented by Chibita, the one student who dotes on him.

Stifled by his royal burdens and constant handlers, Prince Chibiru slips the leash and finds action in a local department store as he gives chase to a pickpocket, Iyami.

Dad and the boys think they're getting a good deal by hanging out at Iyami's Beach House, but the owner and his assistant, Chibita, gouge their guests for everything they're worth.

Mom and Dad get to start their lives over again thanks to a magic wish that reverts them to teenagers.

Oden stand owner Chibita trains to fight the Akatsukadai boxing champion, Iyami.

It's a war between the parents when Dad becomes frustrated that Mom is a better salesperson than he is.

Honeybee Chibita is in search of his long-lost mother, but his quest is impeded by a trickster, Iyami Katydid, and the ravenous Dayon Spider.

Ridde Temple Master Dekapan gives monks Iyami and Chibita the challenge of stumping locals with riddles.

Inspector Chibita teams up with "great detective" Iyami to capture Phantom Thief Dayon.

30 years later, the Sextuplets are middle-aged salarymen scientists slaving away under their boss, Dekapan, and his demanding daughter, Totoko

Iyami tries to sell camera film for his failing company.

Dekapan invents a robot vaccum cleaner that goes out of control and threatens to destroy the country.

God (Dekapan) grants Chibita the power to make all of his wishes come true.

Chibita's mother comes back into his life by having him kidnapped away from Dekapan, the poor man who raised him.

With winter on its way, Iyami wants to be jailed for the sake of shelter and warm meals, however all of his attempted crimes turn into good deeds.

Would-be burglar Iyami is drafted into posing as the director of a hospital, a ruse that works until he's forced to treat a yakuza boss.

Iyami is haunted in his dreams by the spirit of a vengeful samurai, Chibita.

When Iyami's circus goes out of business, he gives the lion to the Osomatsu's family, which doesn't sit well with Chibita, the lion's only friend.

In ancient Japan, secret retired vice-shogun Hatabou and his companions go up against crooked magistrate Iyami.

To prepare for invading Earth, aliens abduct Iyami and sift through memories of his worst moments.

When everyone has finally had it with them, Iyami and Chibita's only escape is a long swim across the Pacific.