← Episode 19 – Tell Us, Hatabou / School Matsu / Iyami's School All Mr. Osomatsu episodes Episode 21 – The Star of Hope, Todomatsu / Final Sheeeh →
Other seasons: Mr. Osomatsu 2nd season, Mr. Osomatsu THE MOVIE, Mr. Osomatsu 3rd season, Mr. Osomatsu 4th season