Nine universes of the previous Kamen Riders from the Heisei era are merging into one, something that would destroy all the worlds. To prevent this, Tsukasa Kadoya transforms into Kamen Rider Decade and is told that to protect his own world he must travel to all of the other Kamen Riders' worlds (Another Rider's worlds) and eliminate the anomalies in those worlds. Along the way, confronting the mysterious Narutaki and the thief Daiki Kaito, they are joined by Yusuke Onodera of the World of Kuuga and Kivala of the World of Kiva.
井上正大
as 门矢士
村井良大
as 小野寺雄介
戸谷公人
as 海东大树
森カンナ
as 光夏海
Episode 1
Episode 2
Episode 3
Episode 4
Episode 5
Episode 6
Episode 7
Episode 8
Episode 9
Episode 10
Episode 11
Episode 12
Episode 13
Episode 14
Episode 15
Episode 16
Episode 17
Episode 18
Episode 19
Episode 20
Episode 21
Episode 22
Episode 23
Episode 24
Episode 25
Episode 26
Episode 27
Episode 28
Episode 29
Episode 30
Episode 31
