List of Mr. Osomatsu episodes
"Mr. Osomatsu", known in Japan as "Osomatsu-san", is a 2015 anime television series directed by Yoichi Fujita and produced by Pierrot, based on Fujio Akatsuka's "Osomatsu-kun" manga series. Celebrating Akatsuka's 80th birthday, the series follows the sextuplet Matsuno brothers as they now start living as adults. The first season aired between October 6, 2015, and March 29, 2016, and was simulcast by Crunchyroll. Following its broadcast, the first episode was removed from streaming and is replaced by an original video animation episode in its home video release. A special episode, produced  in collaboration with the Japan Racing Association, aired on December 12, 2016. For the first twelve episodes, the opening theme is by AŌP while the ending theme is by Iyami (Kenichi Suzumura) and the Matsuno brothers (Takahiro Sakurai, Yuichi Nakamura, Hiroshi Kamiya, Jun Fukuyama, Daisuke Ono, and Miyu Irino). For episodes thirteen onwards, the opening theme is by AŌP while the ending theme is by Totoko (Aya Endō) and the Matsuno Brothers. In the end of special episode, the message "See You Again" was appeared as the endcard. The second season aired in Japan between October 3, 2017, and March  27, 2018. For the first thirteen episodes, the opening theme is by AŌP while the ending theme is by ROOTS66. From episode 14 onwards, the opening theme is by AŌP while the ending theme is by The Osomatsu-sans. The third season aired in Japan between October 13, 2020, and March 30, 2021.