First greatest hits album of Kanjani8 features all title songs of their singles and a new song "Kuruton" performed by Yokoyama who won the first place at "Gachinko Matsuri! Center wa Ore da!!" event. Comes with 20 postcards featuring design of their single posters, and a photo book "8th ANNIVERSARY PHOTO BOOK "8Sai (Hassai), Sugohachi" (52 pages)," bonus DVDs with live performance and documetnary of the event "8Sai (Hassai)," digest of "Gachinko Matsuri! Center wa Ore da!!, and "Matsubara Shinichi presents Sugohachi" held at Kyocera Dome in Osaka on August 8, 2012.