K - Days of Blue - Vol.1 (KC x ARIA Comics) Manga

K - Days of Blue - Vol.1 (KC x ARIA Comics) Manga. Japanese Title: K -??????????-(1) (KCx ARIA) Tokyo Regional Legal Affairs Bureau Census Division, Annex 4 also known as SCEPTER 4 is a police institution that aims to stop criminals with special skills. But for them, their real target are?