The fifth volume of the manga adaptation of the hit tokusatsu show Kamen Rider Kuuga. Dark secrets will be revealed as another legendary Kamen Rider enters the fray. Detective Ichijo cares for nothing more in the world that his sister Karine: the victim of a terrible crime, that left her heart broken. Years ago, seven girls were kidnapped but only Karina survived... the perpetrator Yukina Tsugami was locked away... but little does Ichijo and Kuuga know that she is in fact the legendary Agito.