AIMS captain Yua Yaiba was ordered by Secretary of Defense Daimonji to destroy the Kamen Rider. Yua was confused by this directive, but Kamen Rider MetsubouJinrai also set the next target as Yua, aka Kamen Rider Valkyrie. In addition, soldier-type Humagears, "Solds", who have now escaped the curse of ZAIA Enterprise, also embark on a full-scale war with AIMS in search of freedom. On the other hand, Isamu Fuwa who witnessed the fierce end of the four people of the MetsubouJinrai.net began to notice their "true intention". What is the fate of Yua, who sticks to her own "justice" and continues to refuse to fight Kamen Rider MetsubouJinrai and Humagear "Solds"? And, Isamu who decided one determination was trying to fulfill his last mission as Kamen Rider Vulcan.