Kamen Rider W: The Case Files Of Memory And Sins

[Kamen Rider W x Detective Conan Crossover!]

After Kamen Rider Double defeat Jun Kazu before the event of Fuuto Pi. Tsukasa Kadoya decide to find the successor of Kamen Rider Double, they found two students who similar to Shotaro and Philip. The two students known as Satoru Fujihidari and Riku Sugiyama.

They head back to their home until the white suit mens appear and they are from Foundation X, the duo tried to escape until Aurora Curtain took them and they are in Narumi Detective Agency, meet Tsukasa Kadoya who is a real Kamen Rider Decade.

Tsukasa explain that Foundation X and Museum are back, chosen the duo to become the next Double as they accept the offer and send to the world of Case Files. They decide to save the world from Foundation X and Neo Museum.. Now, count Up your sins!