In Japan, Aniplex distributes the anime in DVD format.[5] A total of thirteen volumes were released for the first season, between July 26, 2006 and June 26, 2007.[6] The second season was released over another set of thirteen volumes between July 25, 2007 and July 23, 2008.[7] Season 3 was released in thirteen volumes from August 27, 2008 to August 26, 2009.[8] The fourth season was collected in thirteen DVD volumes from October 28, 2009 to October 27, 2010.[9][10] Prior to the series' premier, an original video animation (OVA) of Gin Tama by Sunrise was showing at Jump Festa Anime Tour in 2005.[11] A ten-minute long OVA named Shiroyasha Kotan (白夜叉降誕, lit.