Aya's best friend, Anna, has been an operative in the government-run special ops program known as the "Zombie Punitive Forces" (Z.P.F. for short) since the beginning, and her skills are generally considered to be the best of the best. Though she leads the entire team, she does so remotely, communicating with the two pairs of sisters via radio and even remote-controlling helicopters to come to their aid as needed. Due to the joining of the Dimensional Heroes, Shining Hope Squad, and Brave Adventures, she now serves as the navigator and support of all 4 groups.