Tokyo Butei High school--- It was a special school where armed detectives, also known as "Butei" are being brought up. Tohyama Kinji is a sophomore student who has the unique body which activates a "super mode" when it was stimulated by "something". He tries to hide it to others in order to live a peaceful life. But trouble came to find him when he became a victim of a bombing incident, where he met the Butei high "Assault" department elite, Aria H. Kanzaki. 
(Source: Baka-Tsuki)

The story takes place in Tokyo Butei High School, a special school where armed detectives &mdash; "Butei" &mdash; are trained to use weapons. Kinji Tooyama 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 H. Aria Kanzaki, the most powerful S-Rank Butei student in Assault Studies.
 
(Source: Anime News Network)

Aria is a volatile girl who’s top dog in assault at a school for young mercenaries. When she discovers her classmate Kinji’s an ace, she strong-arms him into being her partner, but she isn’t the only femme fatale who wants a taste of his combat skills. His secret? He’s only a hotshot when he’s turned on! Aria gets Kinji for one mission, but he’ll end up with more than one finger on his trigger! 
(Source: Crunchyroll)

Tokyo Butei High School is a place where teenagers are trained to be "Butei", combat detectives. Tokyou Butei student Touyama Kinji, who is otherwise ordinary, has a special ability to go into "Hysteria Mode" that can trigger without his control when he is in close proximity to girls. In his Hysteria Mode, which he is trying to keep something of a secret, he becomes super powerful and very concerned with protecting women. One day Kinji is targeted by a Butei killer, who rigs his bicycle to explode, and is rescued by assault expert transfer student Aria H. Kanzaki. But after witnessing his Hysteria Mode, Aria will not leave him alone...


A young girl idolizes the world-renowned S-ranked butei Kanzaki H. Aria and plans to follow in her footsteps. However, her test grades her out as only an E-rank! All is not lost, however, as Aria agrees to give her some pointers. Can Aria help this newcomer become a first-rate butei?

The girls of Hidan no Aria star in their own super-deformed 4-koma comic series, most of which fall under girls doing cute things. Not nearly as many guns as you'd expect there to be.

Second part of the Hidan no Aria manga adaptation, adapting volumes 7 through 9.

Third part of the Hidan no Aria manga adaptation. 

Tags