Hidan no Aria(2221)

Other Title(s)緋弾のアリア
Aria the Scarlet Ammo
Genre(s)Action, School Life, Seinen, Romance, Harem, Slice of Life
SynopsisThe story takes place in Tokyo Butei High School, a special school where armed detectives — "Butei" — 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.