戦いの中止を宣言する神崎士郎。変身能力を失っても、契約には縛られつづける真司と蓮は、モンスターに襲われながら、士郎の言うなりに行動するしかない。そして浅倉の弟・暁を探しだす令子。「兄が恐ろしい」と告白する暁を、令子たちは説得するが……。
Shinji and Ren are forced to track down Yui as she confronts her brother about her connection to the Rider War and their childhood memories. Reiko tries to find Asakura's younger brother, believing that will change him for good, only to discover that Asakura used his younger brother to feed his Contract Monsters. As Ren, Shinji and Shuichi battle against Asakura, he unleashes a new Card that does something the Riders didn't expect to happen.
