Toaru Kagaku no Railgun S Episode 14

Promise (約束) is the fourteenth episode of the second season of the Toaru Kagaku no Railgun anime series and the 38th episode in the series overall. It was first broadcasted on July 12th, 2013.

For Oneesama, what else can she say and do but wait patiently? Kuroko does so with determination, though this determination begins to wane when her concerns for Mikoto's everyday-absences rear up in her mind. As she worries, a surprising person appears before her—Touma an acquaintance of her Oneesama.

In an attempt to get even a small clue about what Mikoto is dealing with, Kuroko allows him to enter their room. However, the Dorm Supervisor and her troublesome patrols have come, and she is forced to hide Touma away underneath a bed. Despite his stifled breath under the bed, he finds something intriguing within Mikoto's Kirigumar—the truth hidden behind the "experiments" that the Sisters he had met had spoken of. Touma, now knowing that Mikoto is fighting a battle on her own, hastily sets off running around Academy City in the dark of the night.

Meanwhile, Mikoto has been forced to bring out her final trump card, and now must make a difficult choice...

Adapted from

 * Toaru Kagaku no Railgun Manga Chapter 034
 * Toaru Kagaku no Railgun Manga Chapter 035
 * Toaru Majutsu no Index Light Novel Volume 03

Characters

 * Shirai Kuroko
 * Kamijou Touma
 * Misaka 10032's cat
 * Tokiwadai Dorm Supervisor
 * Accelerator (referenced)
 * Misaka Mikoto
 * Misaka 9982 (flashback)
 * Misaka 10032 (flashback)
 * Misaka Misuzu (flashback)

New Characters
No new characters were introduced during this episode.

Locations

 * Academy City
 * School District 7
 * Tokiwadai Dormitory
 * A Certain Iron Railway Bridge

New Locations
No new locations were introduced during this episode.

Abilities

 * Teleport - Shirai Kuroko, Level 4
 * Electromaster (Railgun variant) - Misaka Mikoto, Level 5

New Abilities
No new abilities were introduced during this episode.

Trivia

 * stand still returns as the ending theme for the episode, though having notable difference is that Touma and Mikoto's positions are switched.

Referbacks

 * Mikoto's Kill Bear that was shown back in episode 7 finally makes a comeback a plot device that allows Touma to discover about the Level 6 Shift Project.
 * Mikoto's internal monologue on heroes being unrealistic from episode 12 are referenced, and is used as an ironic echo when Touma decides to fight against Accelerator for Mikoto.

Animation Trivia

 * The scene where the Tokiwadai Dorm Supervisor's feet is focused when she is walking towards Mikoto and Kuroko's room is completely identical to the same scene in episode 11 of the first season of Index.
 * Scenes from episode 2, 4, 5, 11, 12, and 13 are reused for flashbacks during this episode.
 * When Mikoto beckons the black cat to her, the animation is computer generated.