A Certain Scientific Railgun S
Something sinister is going on in Academy City. The shadows are filled with whispers of an organization cloning super-powered students known as espers. High-ranking master of electricity, Mikoto Misaka, laughs off these stories until she comes face to face with a copy of herself. After learning that these clones - her sisters - are being systematically murdered in a series of experiments designed to turn a sadistic killer into the strongest esper in history, Misaka vows to save her copies and destroy the organization responsible for the project. As Misaka prepares to face off against the organization’s power-hungry esper, she discovers that she wasn’t the only victim of the scientific forces conspiring within the city - and that’s something Misaka and the girls of Judgement simply won’t stand for.
Episodes
1 Railgun Apr 12, 2013 
2 Critical Apr 19, 2013 
3 Project Radio Noise Apr 26, 2013 
4 Sisters May 3, 2013 
5 Project Level 6 Shift May 10, 2013 
6 I... Can See All of You May 17, 2013 
7 I... I Want to Be of Help To You, Sissy May 24, 2013 
8 ITEM May 31, 2013 
9 AIM Stalker Jun 7, 2013 
10 Meltdowner Jun 14, 2013 
11 The Vending Machine Jun 21, 2013 
12 Tree Diagram Jun 28, 2013 
13 Accelerator Jul 5, 2013 
14 The Promise Jul 12, 2013 
15 Kamijo Toma Jul 19, 2013 
16 Sisterhood Jul 26, 2013 
17 Study Group Aug 2, 2013 
18 Moving Aug 16, 2013 
19 Academic Reach Assembly Aug 23, 2013 
20 Febri Aug 23, 2013 
21 Darkness Aug 30, 2013 
22 STUDY Sep 6, 2013 
23 Silent Party Sep 13, 2013 
24 Eternal Party Sep 20, 2013