Osomatsu-san Anime Details and Episodes Matsuno household has six naughty and mischievous sons (who are sextuplets), led by the eldest Osomatsu. They were grade schoolers back in the Showa… Series info Watch free DetailsFormatMangaStatusFinishedScore61/100SourceOriginalCountryJapan GenresComedySlice of Life TagsJoseiParodyTwinsPrimarily Adult CastSlapstickPrimarily Male CastMale Protagonist RelatedOsomatsu-kun (Parent Story)Mr. Osomatsu 2nd season (Adaptation)Mr. Osomatsu THE MOVIE (Adaptation)Urumatsu-san (Spin-off)Mr. Osomatsu (Alternative)Osomatsu-san (Alternative)"Osomatsu-san" Koushiki Anthology: Aishiteiru no yo Osomatsu-san♥ (Shared Characters) CharactersJyushimatsu MatsunoIchimatsu MatsunoTodomatsu MatsunoChoromatsu MatsunoKaramatsu Matsuno