★ 8.0 TV Series
Daily Lives of High School Boys
The third season of Osomatsu-san. Read more
Storyline
The third season of Osomatsu-san.
Trailer
Characters & Japanese Voice Cast
Ichimatsu Matsuno
Main
VA: Jun Fukuyama
Karamatsu Matsuno
Main
VA: Yuuichi Nakamura
Jyushimatsu Matsuno
Main
VA: Daisuke Ono
Todomatsu Matsuno
Main
VA: Miyu Irino
Choromatsu Matsuno
Main
VA: Hiroshi Kamiya
Osomatsu Matsuno
Main
VA: Takahiro Sakurai
Iyami
Supporting
VA: Kenichi Suzumura
Totoko Yowai
Supporting
VA: Aya Endou
Chibita
Supporting
VA: Sachi Kokuryuu
Dayon
Supporting
VA: Nobuo Tobita
Nyaa Hashimoto
Supporting
VA: Nanami Yamashita
Hatabou
Supporting
VA: Momoko SaitouSeasons & Related Anime
PrequelMr. Osomatsu 2nd season
TV Series · 2017
SequelMr. Osomatsu 4th season
TV Series · 2025
Side storyChocomatsu-san: Valentine's Day-hen
ONA · 2021
Side storyChocomatsu-san: White Day-hen
ONA · 2021
Side storyOsomatsu-san 3 Short Episode Anime: Gekokujou
Special · 2021
Side storyAtsumare! Minna no Contematsu-san!
Special · 2021
Side storyOsomatsu-san: Hipipo-Zoku to Kagayaku Kajitsu
Movie · 2022
Side storyOsomatsu-san: Tamashii no Takoyaki Party to Densetsu no Otomari-kai
Movie · 2023
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Daily Lives of High School Boys
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Frequently Asked Questions
How many episodes does Mr. Osomatsu 3rd season have?
Mr. Osomatsu 3rd season has 25 episodes.
Which studio made Mr. Osomatsu 3rd season?
Mr. Osomatsu 3rd season is produced by Studio Pierrot.
Facts from AniList (also listed on MyAnimeList); streaming availability from JustWatch India. Last updated 18 October 2026, 11:38 PM IST. Episode times are Japan broadcast times shown in IST. Spotted a mistake? Write to [email protected].