1st season
2015 · 25 episodes · 10h 25m in all · 7.9/10
The Matsuno brothers, stars of "Osomatsu-kun", are jaded 20-somethings looking for a job and love, but never seem to find it or make an effort to. How can they compete with everyone else in the country? Featured alongside these tales of adult woe are stories of imagination, from a murder mystery to the Sengoku era.

Episodes

1. Osomatsu-kun Returns
5 Oct 2015 · 25 min
The Matsuno brothers and company try to adapt their 1960s-era show to contemporary times, with mixed results.

2. Let's Get a Job / The Melancholy of Osomatsu-kun
12 Oct 2015 · 25 min · 7.0/10
The Matsuno brothers struggle to find employment. / Osomatsu tries to take an interest in his brothers' lives but winds up being a nuisance to them.

3. Tidbits Collection
19 Oct 2015 · 25 min · 6.0/10
A collection of unrelated shorts starring the wild and wacky cast of Osomatsu-san. A trip to outer space ends in disaster, the Pachinko Police are called in, and a familiar-looking puppet serial killer who can't seem to find the right sextuplet for his reverse-beartrap are among the skits featured.

4. Let's Get Independent / This is Totoko
26 Oct 2015 · 25 min · 7.0/10
The Matsuno brothers compete to ensure their divorcing parents will care of each of them. / Childhood crush Totoko asks the sextuplets for help in a crisis.

5. The Karamatsu Incident / ESP Kitty
2 Nov 2015 · 25 min · 9.0/10
Karamatsu gets kidnapped and held for ransom by Chibita, but his brothers don't do anything. / A cat is given the ability to speak and read minds, which causes mayhem for the Matsunos.

6. It's a Birthday Party, dajo / Iyami's Great Discovery
9 Nov 2015 · 25 min · 7.0/10
The Matsunos are invited to Hatabou's birthday party. / Iyami discovers that his buckteeth contain a rare metal.

7. Todomatsu and the 5 Demons / To the North
16 Nov 2015 · 25 min · 8.0/10
Todomatsu gets a job at a local coffeehouse. His brothers want no such success. / Dekapan and Dayon enjoy a carefree northbound trip together.

8. The Calming Osomatsu / Totoko's Dream
23 Nov 2015 · 25 min
Captain Choromatsu invites an interesting detective onto an increasingly dangerous murder case to ease the tension of the crew. / Totoko wants to be a popular idol, but reality is so cruel.

9. Chibita and Oden / Jyushimatsu Falls in Love
30 Nov 2015 · 25 min · 10.0/10
Karamatsu ends up as Chibita's apprentice at his oden stand. / Jyushimatsu falls in love and his brothers try to help him achieve his romance as best they can.

10. Iyami and Chibita's Rental Girlfriend
7 Dec 2015 · 25 min
Iyami and Chibita scheme to dress up as girls, and trick the Matsuno brothers (and their wallets) into falling in love with them with the help of a sex-change drug. It's only a matter of time before this plan goes bad.

11. Christmas Osomatsu-san
14 Dec 2015 · 25 min
A series of Christmas-themed skits. Among those included are a zombified cold open, Ichimatsu disturbing a happy couple on a date, an F6 holiday fantasy, and the Annual Matsuno Family Christmas Gift Exchange.

12. Year-End Special-san
21 Dec 2015 · 25 min
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?
4 Jan 2016 · 25 min
A salaryman named Sanematsu takes care of his six siblings. / The Matsuno brothers play the roles of a friend group of working girls. / Choromatsu gets caught during a private moment.

14. We Caught a Cold / Todomatsu's Line / Choromatsu-sensei
11 Jan 2016 · 25 min
The sextuplets catch a resilient cold./ The brothers question Todomatsu about all the things he hasn't told them about his personal life. / Choromatsu plays a paranoid vice-principal overly worried about plans for his school's cultural festival.

15. Interview / Girlymatsu-san 2 / The Life of Chibita's Flower
18 Jan 2016 · 25 min
Jyushimatsu goes to a job interview, proving to be a total nuisance for the interviewers. / The Girlymatsus return to go on a ladies' trip, causing trouble for each other as they arrive. / Chibita falls in love with a fairy who manifested from a lonely flower.

16. Cat Cafe / Matsuno Max / The Ichimatsu Incident
25 Jan 2016 · 25 min
Ichimatsu gets a job interview at a cat cafe, but when in Rome, he does as the locals do. / In an apocalyptic world, F6 battles 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 trying on his clothes.

17. Jyushimatsu Festival
1 Feb 2016 · 25 min · 9.0/10
A series of Jyushimatsu-oriented skits, including the fifth-youngest defusing a bomb, having a late-night cup of noodles, selling baseball doujins at Comiket, and devolving the world into its written essentials.

18. Girlymatsu-san 3 / Iyami's Counterattack
8 Feb 2016 · 25 min
The Girlymatsus attend a wedding and try very badly to pretend to not be jealous. / Wanting to become the main protagonist of the franchise again, Iyami holds a bizarre kart race to determine who the real star of Osomatsu-san will be.

19. Period Drama Osomatsu-san / Choromatsu Rising
15 Feb 2016 · 25 min
A series of skits take place, set during the Sengoku era. / Choromatsu decides to quit being an idol-worshipper and pursue a job, with only his self-awareness standing in the way.

20. Tell Me, Hatabou / School Matsu / Iyami's School
22 Feb 2016 · 25 min
Hatabou starts his own catering service, cooking with a delicious mystery meat. / Osomatsu and the rest play delinquent high school students competing to see who's the toughest. / Iyami starts a comedy class hoping to earn a quick buck.

21. Mahjong / Godmatsu
29 Feb 2016 · 25 min
On a rainy evening, the brothers play a fierce game of mahjong. / The sextuplets suddenly find themselves joined by a seventh brother, Kamimatsu, born from the goodness that fell out of the brothers' hearts.

22. The Star of Hope, Todomatsu / Final Sheeeh
7 Mar 2016 · 25 min
Todomatsu holds auditions to take one of his brothers with him to a mixer, struggling to find anyone worth taking. / Iyami meets a kung-fu master who believes him to possess a special technique.

23. Kerosene / Dayon Tribe
14 Mar 2016 · 25 min
When the family heater runs out of kerosene, the brothers to force each other to get a refill. / Osomatsu, Karamatsu, and Choromatsu find themselves in an underground village populated by a tribe of Dayon people.

24. Totoko's Huge Panic / Letter
21 Mar 2016 · 25 min
Totoko is jealous when those she knows find more success than her. / 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
28 Mar 2016 · 25 min
The brothers quickly abandon their new lifestyles upon learning they have been invited to a baseball tournament for the finale.
Mr. Osomatsu 1st season: quick answers
How many episodes are in Mr. Osomatsu 1st season?
1st season of Mr. Osomatsu has 25 episodes, about 10 hours in total.
When did Mr. Osomatsu 1st season come out?
1st season premiered on 5 Oct 2015.