Nobody talks about this one. Fan-submitted 4-koma manga turned into six episodes of pure chaos, the Osomatsu brothers doing absurd shit with zero narrative weight, just immediate punchlines and weird tangents that land because the comedy writers actually understand timing. It's built for people who've already fallen for the sextuplets' dynamic and just want to watch them be stupid together for twenty minutes with no setup required. The special episodes are loose in a way the main show can't afford to be.

Atsumare! Minna no Contematsu-san! is a set of six comedy specials from 2021, released as bonus content on volumes 1 through 6 of the Blu-ray and DVD release of Osomatsu-san's third season. The material comes from fans: the specials adapt four-panel comic strips that fans of the series sent in, bringing their gags to the screen as animated pieces within the Osomatsu-san franchise.