Aria the Scarlet Ammo(2011)

Aria demands that Kinji join her Butei party, intruding in his living space when he refuses. This puts Kinji in an awkward situation when his childhood friend, Shirayuki Hotogi, pops over whilst Aria is taking a bath. The next day, Aria follows Kinji around as he takes on a quest to search for a missing cat. After managing to lose Aria, Kinji trades some eroges with his friend, Riko Mine, to obtain information on Aria. Meanwhile, Aria calls Kinji's bluff on his Butei abilities and coerces him to

Aria follows Kinji to the arcade where he manages to win some plush dolls for her. The next day, Kinji and Aria learn that a schoolbus has been hijacked by the fabled Butei-killer and fitted with a bomb that will explode if it slows down with an armed convertible preventing the passengers from interfering. As the busdriver gets injured when an attempt to stop the convertible is foiled by heat-detection, Aria and Kinji arrive on the scene, taking out the convertible. With the bus slowly running o

After having nightmares concerning the events surrounding his older brother's death, Kinji ends up following Aria who goes to the police station to talk with her mother, Kanae, who is currently incarcerated as a suspect of the Butei killings. She mentions that Aria needs to find a partner to use her ability, as well as someone known as 'E.U.' The next day, Kinji hears word that Aria will be flying back to London. Later, Kinji goes to meet Riko, who reveals information concerning the Butei Killer

Shirayuki is revealed to be a Chōtei, a special type of Butei with esper abilities, as she conflicts with Aria, not helped by dubious misunderstandings. The next day, Aria decides to start a new training regime to try to get Kinji to control his Hysteria Mode. Later, Aria drags Kinji to eavesdrop on Shirayuki as she is taken to the teacher's office, hearing about a Chōtei kidnapper named Durandal who may be targeting her. Believing Durandal to be one of the culprits who framed her mother, Aria o

Field trip has finished. Along the way back to Tokyo, someone had planted a bomb within the bullet train where Kinji and the gang are boarded. Not only the bomb will explode if the train's speed is decreased, but they must increase the speed by 10kph every 3 minutes or it will explode. Even worse, Riko had deduced that the culprit is also inside the train! This mission calls for Kinji, Aria, Riko, Shirayuki and the other Buteis present in the train to disarm the bomb and save the passenger. And

As Aria makes an entrance claiming that she will arrest Durandal, the culprit retreats and chains Hotogi to a post as the room starts filling up with water. Kinji urges Aria to go ahead and pursuit Durandal since she can’t swim, who does so. As the water level rapidly increases, Kinji tries his best to pick the locks and free Hotogi as she asks him to leave her behind so he wouldn’t be killed. When a wave fills up the room, Kinji uses his last resort and kisses Hotogi in order to ‘summon’ his ba

Kinji goes to as he first thinks Aria's room, but after the change in attitude he realizes it's Riko. She then proceeds to attempt moves which will make him enter Hysteria Mode, but Aria interrupts by smashing through the window. They then start to fight which takes the three to the roof, where Aria tells Riko to testify at her mother's trial which, oddly enough, Riko doesn't refuse. Riko explains how Vlad expelled her from I.U. because she didn't defeat Aria, so Kinji and Aria are forced to joi

Riko explains the plan of how they will infiltrate the mansion and claims that they will go in undercover as a butler and maid. With the agreement done, they undergo one more ‘training session’ where as Riko helps train Aria to say some lines and get time stuck in her head, and aims to practice triggering Kinji’s Hysteria Mode. At the same time, Kinji learns a bit about Riko’s past thanks to Jeanne who is now a student at the school.

After having practiced and prepared themselves for the infiltration, Riko disguises herself as a working from the employment agency to introduce Aria and Kinji on the job. However her appearance makes Kinji feel sensitive after he had thought she was originally a girl named Kana. With that said, they show up at the mansion only to see their teacher being the one currently in charge of the place. After a week passes by of investigation and prep, they finally put the motion in action where as Kinj

Kinji and Aria give the rosary to Riko who does not keep her promise to testify and instead decides to attack the two of them so as at to defeat them and surpass her ancestors. Sayonaki-sensei then appears behind Riko tasering her until she becomes subdued and then steps on her and causes her pain. Sayonaki-sensei turned out to be the demon, Vlad and attacks both Aria and Kinji. Kinji saves Riko and tries to fight Vlad with Aria. The only way to kill him is to simultaneously shooting his four we