In 2015, as a work to commemorate the 80th anniversary of Fujio Akatsuka's birth, based on Fujio Akatsuka's famous gag manga "Osomatsu-kun", "Osomatsu" is an animation that describes the growth of 6 children. After the age of 20, she still did not have virginity in Tazu. It describes the daily life of the 6 children of the Matsuno family and caused a social phenomenon. 5 years later, 1. After the second season of the TV animation, after the theatrical version of "Osomatsu", the long-awaited third season of the TV animation will be broadcast in October 2020! The 6 strange children are now making a fuss in various wrong directions!? And there will be new changes in the Matsuno family...?