The official website for the Mr. Osomatsu anime revealed a new teaser for its fourth season, premiering this July 2025. The previous seasons of Mr. Osomatsu were released in 2015, 2017, and 2020 respectively, making this its 10th anniversary since the first season premiere.
Based on a manga of the same name by Fujio Akatsuka, its story centers around the Matsuno household and its mischievous sextuplets. All of the sextuplets, including the eldest Osomatsu, are all in love with the same girl, Totoko.
Takahiro Sakurai, Yuichi Nakamura, Hiroshi Kamiya, Jun Fukuyama, Daisuke Ono, and Miyu Irino will be reprising their roles as the Osomatsu sextuplets.
Yoshinori Odaka, the episode director for the anime’s first and third seasons and the Osomatsu-san ~Hipipo-Zoku to Kagayaku Kajitsu~ film, will be returning to direct the fourth season at Pierrot Films. Shu Matsubara and Eiji Abiko are also returning as scriptwriter and character designer respectively.
