Aria the Scarlet Ammo
A Butei student's life changes after meeting elite prodigy Aria.
Aria the Scarlet Ammo is a Japanese light novel series by Chūgaku Akamatsu that spawned multiple manga and anime adaptations. The franchise is notable for its action-oriented setting of licensed detectives called Butei and for a spin-off series, Aria the Scarlet Ammo AA, which also received an anime adaptation.
Quick Facts
- Genre
- Girls with guns, Romantic comedy
Facts from the source article.
Plot
The story takes place in a world where Butei—licensed armed detectives—are trained to combat rising crime. Kinji Tōyama, a student at Tokyo Butei High, plans to quit the academy but is attacked by the Butei Killer. He is rescued by elite Assault prodigy Aria H. Kanzaki, altering his future as a Butei. The spin-off Aria the Scarlet Ammo AA follows E-ranked Akari Mamiya as she seeks to become Aria's Amica.
Characters
Kinji Tōyama is a student at Butei High initially ranked E due to a missed exam. He possesses Hysteria Mode, a genetic trait activated by sexual arousal that boosts his cognitive and physical abilities to about thirty times normal, granting near-superhuman feats. In this state he cannot directly harm women and develops a suave demeanor. He was formerly an S-ranked Assault prodigy and now belongs to the Inquesta department. Over the series he develops romantic feelings for Aria, and kissing her in episode 5 activates Hysteria Mode. He wields a modified Beretta 92F (three-round burst), a butterfly knife, and later a modified black Desert Eagle and a double-edged seax belonging to Sherlock Holmes. In Hysteria Mode he dual-wields both guns and both blades, earning the title Quadra of Mimicry. Aria Holmes Kanzaki is an elite Butei Assault prodigy who rescues Kinji from the Butei Killer.
Media
Chūgaku Akamatsu wrote the Aria the Scarlet Ammo light novel series, with art by Kobuichi. Media Factory released the first volume on August 25, 2008, under their MF Bunko J label. By June 2026, there were 45 main novels. A spin-off novel, Aria the Scarlet Ammo Reloaded, came out on December 25, 2012. A manga drawn by Yoshino Koyoka began in Monthly Comic Alive in September 2009, and 26 volumes existed as of February 2025. A 12-episode anime by J.C.Staff, directed by Takashi Watanabe, aired from April 15 to July 1, 2011, with an OVA on December 21, 2011. Funimation licensed it for North America. A second anime, adapting the AA spin-off and produced by Doga Kobo, ran from October 6 to December 22, 2015. A short anime for the 15th anniversary was announced on April 15, 2026.
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