Season 1 Episodes
1. Osomatsu-kun Returns
The Matsuno brothers try to adapt their show to contemporary times, with mixed results.
2. Let's Get a Job/The Melancholy of Osomatsu-kun
The Matsuno brothers struggle to find employment. Later, Osomatsu tries to take an interest in his brothers' lives but winds up being a nuisance to them.
3. Tidbits Collection
This week's episode is the tidbits collection. Everything from Dekapan-man, to what happens if you try to horde your pachinko winnings, to a bath house quiz.
4. Let's Get Independent/This is Totoko
The Matsuno brothers compete to ensure their divorcing parents will care of each of them. Meanwhile, Totoko asks the brothers for help in a crisis.
5. The Karamatsu Incident/ESP Kitty
Karamatsu gets kidnapped, but his brothers don't do anything. Later, a cat gets to speak and read minds, which causes mayhem for the Matsuno brothers.
6. It's a Birthday Party, Dajo/Iyami's Great Discovery
The Matsunos are invited to Hatobou's birthday part. Meanwhile, Iyami discovers that his buckteeth contain a rare metal.
7. Todomatsu and the 5 Demons/To the North
Todomatsu starts to work at a stylish cafe. His brothers try to disturb his fulfilling life. / Dekapan and Dayon enjoy a carefree travel together toward north.
8. The Calming Osomatsu/Totoko's Dream
Captain Choromatsu waits a man while he carries out a murder case investigation with Detective Todomatsu. / Totoko wants to be a popular idol, but reality is so cruel.
9. Chibita and Oden/Jyushimatsu Falls in Love
Karamatsu ends up as Chibita's apprentice at his oden stand. Meanwhile, Jyushimatsu falls in love and his brothers try to help him achieve his romance.
10. Iyami and Chibita's Rental Girlfriend
Iyami and Chibita dress up as girls, and trick the Matsuno brothers into falling in love with them. It's only a matter of time before this plan goes bad.
11. Christmas Osomatsu-san
A series of Christmas-themed skits. Ichimatsu takes on the role of a Black Santa interrupting a romantic couple's date, while Karamatsu finds himself on a date with an unfortunate ending.
12. Year-End Special-san
Osomatsu and Totoko host an end of year special broadcast, looking back on previous episodes to determine which of the brothers is the biggest loser.
13. Sanematsu-san/Girlymatsu-san/Accident?
A salaryman named Sanematsu takes care of his six siblings, the Matsuno brothers become girls and argue, and a fight between Choromatsu and Osomatsu occurs.
14. Kaze wo hiita/Todomatsu no rain/Choromatsu-sensei
The brothers all catch colds. Later, the brothers question Todomatsu about all the things he hasn't told them about his personal life. Choromatsu is a paranoid vice-principal overly worried about plans for his school's cultural festival.
15. Mensetsu/Chibita no hana no inochi
Jyushimatsu goes to a job interview, proving to be a total nuisance for the interviewers. Chibita is asked out on a date by the fairy of a flower he saved.
16. Matsuno Max/The Ichimatsu Incident
In an apocalyptic world, the Idol Matsunos battle against Iyami and Dekapan, who are robbing the dry-skinned citizens of all of their lotion. Ichimatsu is forced to pretend to be Karamatsu after Osomatsu catches him wearing his clothes.
17. Jyushimatsu Festival
Jyushimatsu carries out incredible feats. Meanwhile, the other brothers try to find out when Jyushimatsu developed his odd personality.
18. Iyami's Counterattack
Wanting to become the main protagonist of the franchise again, Iyami holds a bizarre kart race to determine who the protagonist of Osomatsu-san will be.
19. Period Drama Osomatsu-san/Choromatsu Rising
A series of skits take place, set during the Sengoku era. Back in the present, Choromatsu decides to quit being an idol and pursue a job.
20. Teach Me, Hatabou/School Matsu/Iyami's School
Hatabou starts his own catering service. Later, Osomatsu and Karamatsu play as delinquent high school students competing to see who's the toughest. Afterwards, Iyami starts a comedy class hoping to earn a quick buck.
21. Mahjong/Godmatsu
On a rainy evening, the brothers play a game of mahjong. Later, the brothers suddenly find themselves joined by a seventh brother, Godmatsu, who was allegedly born from the goodness that fell out of the brothers' hearts.
22. The Star of Hope, Todomatsu/Final Sheeeh
Todomatsu holds auditions to take one of his brothers with him to a mixer, struggling to find anyone worth taking. Meanwhile, Iyami meets a kung-fu master who believes him to possess a special technique.
23. Kerosene/Dayon Tribe
When the family heater runs out of kerosene, the brothers to force each other to get a refill. Meanwhile, Osomatsu, Karamatsu, and Choromatsu find themselves in an underground village populated by a tribe of Dayon people.
24. Totoko's Huge Panic/Letter
Totoko is jealous when people start getting more success than her. Meanwhile, Choromatsu manages to land a job and moves out of the house, with the other brothers soon following suit, leaving just Osomatsu alone.
25. Osomatsu-san, Such as It Was
The brothers quickly abandon their new lifestyles upon learning they have been invited to a baseball tournament for the finale.