What the customer left behind in the cab is a passport that opens the door to nightmares and horror. After a collision, Nagashi Kawatome is rushed to the emergency room, where he loses his memory and does not know who he is. When Kawatome meets Katsuie Takaishi, who works as a head nurse at the hospital where she is hospitalized, she tries to regain her memory, but ......
In a universe where the Cold War never ended and growing conflicts result in the rapid advancement of technological warfare, the cyborg spy Mylene Hoffman of the 00 Organization battles the agents of the Eastern block in a game of high tech espionage.
Set primarily before the events of Kamen Rider W Forever, Kamen Rider Eternal tells the story of Daido Katsumi, the formation of NEVER, the mission that led them to target Fuuto, and reveals just how Daido obtained his Lost Driver and got his first taste of the power of Kamen Rider Eternal. As a mysterious woman retells this story to Phillip and Shotaro, they realize that Daido may not have been the simple monster he first appeared to be…