Home/Discover/Mr. Osomatsu 4th seasonMr. Osomatsu 4th seasonおそ松さん4Mr. Osomatsu 4th season2025 · TV · 13 episodes▶ Watch episode 1+ My listWatch trailer ↗ OverviewEpisodesTrailerThe storyTVThe fourth season of Osomatsu-san.ComedySlice of LifeEpisodesChoose your next chapterEpisode titles follow your spoiler shield.Edit watched progress1Episode 124 min▶2Episode 224 min▶3Episode 324 min▶4Episode 424 min▶5Episode 524 min▶6Episode 624 min▶7Episode 724 min▶8Episode 824 min▶9Episode 924 min▶10Episode 1024 min▶11Episode 1124 min▶12Episode 1224 min▶13Episode 1324 min▶Official trailerA first look at the storyPlay trailer ↗More in this worldRelated animeMr. Osomatsu 3rd SeasonTV · 2020