Crunchyroll posted the "Osomatsu-san Ouma de Kobanashi" (Mr. Osomatsu: A Horse Anecdote) anime special on Monday under the title "Mr. Osomatsu JRA Special 2016." The 24-minute special is part of the "Hashire! Oumatsu-san" collaboration between Mr. Osomatsu and the Japan Racing Association.

The special aired in Japan on Monday at 25:00 (effectively Tuesday at 1:00 a.m.) on TV Tokyo. The special will also stream on the campaign's website on Tuesday at 11:00 a.m. JST and on dTV on Friday at noon JST.

The collaboration also includes a series of six new anime shorts titled "Mutsugo to Ouma no Monogatari" (The Story of the Sextuplets and a Horse). The final episode in the shorts debuted on December 8.

The collaboration also features merchandise that the Japan Racing Association offered at events at the Tokyo Racecourse from October 30 to November 27, and is offering at the Nakayama Racecourse from December 3 to 18.