In the sector of Sougo Tokiwa and Sento Kiryu, their "companions" are dropping their memories one after the alternative as they're replaced with the aid of other human beings. The Super Time Jacker, Tid , seems before them. He orders his effective underlings, Another Double and Another Den-O, to pursue a young boy referred to as Shingo. While combating to shield Shingo, Sougo meets Ataru, a younger guy who loves Riders, however Ataru says that Kamen Riders aren't actual. What is the that means of those words? While the thriller deepens, the genuine enemy that Sougo and Sento ought to defeat appears in the Kuriogatake mountain...