Aria the Scarlet Ammo

The scenario of the narrative includes Butei ("war scout"), a national certification created to combat global crime situations which are getting worse. Butei is short for buso tantei ("armed detective"). The Butei holders are qualified to use various weapons and apprehend criminals since they have received training in a variety of specialized professions. Kinji Tyama attends Tokyo Butei High, a general school dedicated to the education of Butei. Students who show aptitude for the job receive specialized instruction at this school to master the Butei path. The Butei Killer, a criminal known for killing Butei, attacks Kinji soon after he decides to leave the Academy for personal reasons; in this instance, the hunters end up becoming the prey. When the elite Butei Assault prodigy Aria H. Kanzaki saves him, Kinji's destiny as a Butei begins to shift significantly.