To Aru Majutsu no Index: Since his defeat, Accelerator is no longer feared by others, though he remains powerful enough to get rid of troublemakers. During the last day of summer vacation, he is approached by a younger Misaka clone capable of showing emotions, who introduces herself as "Last Order" and begins to follow him around, much to his annoyance. Because she is hungry, Accelerator takes Last Order to a restaurant and sees Ao Amai, a former researcher for the "The Sisters" project, but does not pursue him. As Last Order eats, she converses with Accelerator on the Sisters and how she believes that Accelerator was an unwilling participant of the Level 6 Shift project. Tired of her comments, Accelerator leaves her at the restaurant to confront Yoshikawa, a researcher in charge of the Level 6 Shift project. She informs him that Last Order was not created for the Sisters project but for administrating the Misaka Network and that Ao Amai injected a virus into Last Order, which could spread to the other Misakas and cause them to go berserk and attack humans. To stop the virus, she gives Accelerator the choice of finding Ao Amai to explain how to stop the virus or returning Last Order to her incubator. Accelerator chooses the latter.

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Drama