Mr. Osomatsu: Season 1 (1st season)
This season started on October 5, 2015. The table lists episodes with recorded air dates up to September 28, 2026.
| Ep | Title and air date | My place |
|---|---|---|
| 1 | Osomatsu-kun Returns · 25 min | |
| 2 | Let's Get a Job/The Melancholy of Osomatsu-kun · 25 min | |
| 3 | Tidbits Collection · 25 min | |
| 4 | Let's Get Independent/This is Totoko · 25 min | |
| 5 | The Karamatsu Incident/ESP Kitty · 25 min | |
| 6 | It's a Birthday Party, Dajo/Iyami's Great Discovery · 25 min | |
| 7 | Todomatsu and the 5 Demons/To the North · 25 min | |
| 8 | The Calming Osomatsu/Totoko's Dream · 25 min | |
| 9 | Chibita and Oden/Jyushimatsu Falls in Love · 25 min | |
| 10 | Iyami and Chibita's Rental Girlfriend · 25 min | |
| 11 | Christmas Osomatsu-san · 25 min | |
| 12 | Year-End Special-san · 25 min | |
| 13 | Sanematsu-san/Girlymatsu-san/Accident? · 25 min | |
| 14 | We Caught a Cold/Todomatsu's Line/Choromatsu-sensei · 25 min | |
| 15 | Interview/Girlymatsu-san 2/The Life of Chibita's Flower · 25 min | |
| 16 | Cat Cafe/Matsuno Max/The Ichimatsu Incident · 25 min | |
| 17 | Jyushimatsu Festival · 25 min | |
| 18 | Girlymatsu-san 3 / Iyami's Counterattack · 25 min | |
| 19 | Period Drama Osomatsu-san/Choromatsu Rising · 25 min | |
| 20 | Tell Me, Hatabou/School Matsu/Iyami's School · 25 min | |
| 21 | Mahjong/Godmatsu · 25 min | |
| 22 | The Star of Hope, Todomatsu/Final Sheeeh · 25 min | |
| 23 | Kerosene/Dayon Tribe · 25 min | |
| 24 | Totoko's Huge Panic/Letter · 25 min | |
| 25 | Osomatsu-san, Such as It Was · 25 min |
