From the Japanese light novel series by Chugaku Akamatsu with illustrations by Kobuichi, anime directed by Takashi Watanabe. Plot: The story takes place in Tokyo Butei High School, a special school where armed detectives "Butei" are trained to use weapons. Kinji Toyama is a second-year-student who has a special ability, but he keeps it a secret to maintain an ordinary, peaceful life. However, when he gets caught in a bombing on the way to school, he encounters Aria Kanzaki, the most powerful S-Rank Butei student in Assault Studies...Included 2 episodes, clear case, super picture label.