Description

First Mission.When Aria becomes severely injured during a busjacking incident, Akari is approached by Riko's accomplice, Kyochikutou, who tells Akari to become hers if she doesn't want anyone else to get hurt. Later, as Akari and the others go to the hospital where Aria is being treated, Nonoka collapses before her, suffering from a condition that could cause her to lose her eyesight. Blaming herself, Akari explains to her friends how she comes from a lineage of spies whose deadly techniques got passed down from generation to generation. Two years ago, Kyochikutou, who is part of I-U, the Mamiya clan's enemy, attacked Akari's home and injected Nonoka with a poison. Hina informs the girls that the poison is one that will rob Nonoka of her senses before killing her, with Kyochikutou being the only one capable of neutralizing it. As Akari prepares to sacrifice herself, Aria reminds her of her goal of protecting others and the support of her friends, tasking her with taking down her enemy. With everyone in position, Akari goes to confront Kyochikutou, who offers the antidote to Nonoka's poison in exchange for Akari and her family's own poison, Takamakuri.