Toaru Kagaku no Railgun Episode 23

Synopsis
As Telestina accompanies Haruue Erii to her long lost friend Edasaki Banri, Mikoto, Ruiko, Kuroko, Mii and Uiharu discuss what happened at the discovery of the missing Child Errors last night. Kuroko believes the case is closed and everything is resolved, but Mikoto still has doubts about foiling Kiyama Harumi's plans of reviving the Child Errors. Likewise, Uiharu still can't believe Erii would see her friend again after a long time. With Saten's requests, Uiharu prepares to visit Erii at the hospital.

Meanwhile, Harumi broods over not succeeding in her plans and receives a visit from Uiharu. There, she tells Harumi the story of how she met Erii, who was in turn her student Banri's friend. Harumi insisted that the only hope for a vaccine for the children lies within First Sample and says it's impossible to acquire it. Despite this, Uiharu persuades Harumi to go to MAR to see the girls instead. Harumi agrees.

They are welcomed by Telestina in MAR's headquarters and was given terrible news that access to the Child Errors are forbidden and they would be moved out again for further observation. They also gave her the research material to Telestina, which she destroyed in front of them.

As a personnel of the hospital approached her and referred to her as "Director Kihara", Harumi was shocked. Telestina soon admits that her complete name is: Telestina Kihara Lifeline.

At Judgment headquarters, the mood is lighter than usual; Mii admits that having resolved the Poltergeist incident has made things more comfortable inside the office. Saten contacts Uiharu and discovers that she is crying. Meanwhile, in Anti-skill headquarters, Tsuzuri and Aiho receives news from MAR of the conclusion of the Poltergeist case as well.

Later on, Uiharu arrives at Judgment, where she tells them more news about Telestina's identity as a Kihara. With a quick search, Mii discovers that she is indeed related to Kihara Gensei; more specifically, she's Gensei's granddaughter. Also, they discover that she is the first test subject of the Ability Crystal experiment. Tension mounts as Kuroko approaches and slaps Uiharu in the cheek, reminding her of her duties as Judgment. As Uiharu uses her computing skills for the first time since she met Haruue, Mikoto leaves for MAR headquarters.

As MAR units prepare the transfer of the Child Errors to another facility, Mikoto appears. She then confronts Telestina who is wearing one of MAR's mechanized suits and prepares to fire electricity, only to be weakened by the sound emitted by Capacity Down. Telestina finally admits she is the creator of Capacity Down and the ones used by Skill-Out are prototypes. With Mikoto severely weakened by Capacity Down's effects, Telestina tries to finish Mikoto, using a grenade launcher which she fires at the Electromaster.

The commotion reaches Kongou Mitsuko's room in MAR's confinement rooms. As she checks what is going on, she discovers the extent of damage Telestina caused on the front portion of the headquarters and Telestina herself, cornering Mikoto. Telestina strangles Mikoto and the Level 5 loses consciousness.

Later, another MAR unit wearing a mechanized suit approaches to take Mikoto when Mitsuko suddenly approaches.

Mikoto finds herself in room when she regains consciousness. Ruiko, Kuroko and Uiharu are beside her. Outside the room, Heaven Canceller endures Mitsuko's endless talking about Mikoto owing her life to her. Despite her condition, Mikoto tries to stand up and insists that she is responsible for the Child Errors that she handed over to the wrong person, but Saten stops her. She reminds Mikoto that she has friends to help her. Also Saten proceeds to reconcile Uiharu and Kuroko, who were in bad terms recently. Also, Mikoto manages to say her thanks to Mitsuko as well.

In Judgment headquarters, Uiharu and Kuroko contact Aiho and Anti-skill regarding Telestina. Despite the limits of their duties, Anti-skill and Judgment work together to trace the Child Errors' location, thanks to Uiharu. They also discover Kiyama Harumi's car pursuing the MAR vehicles. After Mii prepares a snack for the incoming battle, Mikoto, Kuroko, Mii, Mitsuko, Uiharu, Saten and Anti-skill prepare for the final confrontation with Telestina.

Adapted From
Adapted from? which chapter of manga and/or novel

Referbacks
references to previous episodes, possibly from Index(based on timeline)

Cultural References
"easter eggs"