Toaru Kagaku no Railgun S Episode 19

is the nineteenth episode for the second season for the Toaru Kagaku no Railgun anime adaption, and the forty-third episode overall. It was first broadcasted on August 23, 2013.

Mikoto and the others find a strange girl collapsed in a park flower bed. The girl says her name is Febri and knows Mikoto's name for some reason. Mikoto has no idea who the girl is and Judgment has not received a notice of a lost child.

Febri takes a liking to Saten, so Saten and Uiharu work together to look after her. The next day, they check photographs from various databases but find no data on Febri, so they treat her as a Child Error. Febri is accepted into Cypress Park, but they must look after her for the five days until she can enter.

Mikoto struggles to get her to say her name, but...

Major events

 * The Academy City Research Exhibit Assembly begins
 * Mikoto bonds with Febri.
 * STUDY proceeds to test their research on Misaka Mikoto.

Adapted from
This episode features original content, as such it is not adapted from any previous material.

Characters

 * Febri
 * Saten Ruiko
 * Misaka Mikoto
 * Shirai Kuroko
 * Uiharu Kazari
 * Konori Mii
 * Tokiwadai Dorm Supervisor
 * Haruue Erii
 * Aritomi Haruki
 * Kosako Shunichi
 * Nunotaba Shinobu
 * Kongou Mitsuko
 * Wannai Kinuho
 * Awatsuki Maaya
 * Yomikawa Aiho
 * Aogami Pierce

New Characters
No new characters were introduced during this episode.

Locations

 * Academy City
 * School District 7
 * Uiharu Residence
 * Tokiwadai Dormitory
 * Judgment 177 Branch Office
 * Cypress Park (referenced)

New Locations
No notable locations were introduced during this episode.

Abilities

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

New Abilities
No new abilities were introduced during this episode.

Trivia

 * Despite what Mii says, Anti-Skill in the anime adaptations have been contacted at such late an hour, specifically when Kamijou Touma sees Misaka 10031's body in episode 13.

Referbacks

 * Erii's moving from the Uiharu Residence is referenced during this episode.
 * Cypress Park and Tokiwadai Dorm Supervisor's work in it is referenced during this episode.

Cultural References

 * Ruiko reads a volume of  as Febri sleeps.

Animation Trivia

 * Erii's height fluctuates during this episode, specifically in the outside shot of the Judgment 177 Branch Office, she is shown to be taller than all of the girls present there, including Mii.
 * The walking animation for the gang as they try to go to Cypress Park is poorly animated, with the girls barely moving their bodies and the illusion of their legs moving faked by having them "moved" up and down, especially that of Febri, whose legs aren't shown allowing for a easier way to hide her walking.
 * During the scene where both Mikoto and Febri are sitting on the same bench, the shadow for Mikoto's blouse goes over a line. This is quickly corrected after Mikoto flinches when Febri doesn't respond to her.

Unanswered Questions

 * Why is Febri antagonistic to Mikoto?
 * Why does Febri suck on a strong-tasting lollipop?
 * Is Febri really a Child Error?
 * What is Febri's connection with STUDY?
 * Why didn't anyone see Haruki near those mad security robots?
 * Why didn't Mitsuko do anything after finding Febri?