Hidan no Aria AA

There are special students called Butei who are authorized to carry weapons, investigate crimes and solve various incidents. One of the best of these students is an S-rank second year at Tokyo Butei High School named Kanzaki H Aria. On the opposite end of the scale is the E-ranked first year named Mamiya Akari.

Akari absolutely idolizes Aria and wants to become an elite Butei just like ...