On the first episode of To Aru Majutsu No Index, Touma said

Magic is impossible, psychic powers aren't even rare at this city school. Anyone can invent it with the powers of science.

And Touma himself said that he got his power since he was born.

So, is there anyone in Index and Railgun who become an esper using science?

Note: I haven't finished watching Index, but I've watch Railgun, and I don't think there's anyone able to do this.

  • I don't understand what you're trying to ask here... Almost all supernatural ability users in Academic City are "artificially" created through the Power Curriculum Program of Academic City. Those rare, natural ability users are called "Gemstones."
    – кяαzєя
    Mar 30, 2014 at 10:40
  • Really? I don't know about that. Did they explain it in Index? Or am I missing something in Railgun? I only watch about 10 eps in Index
    – Darjeeling
    Mar 30, 2014 at 10:45
  • Railgun is specific to the Science Side. Index tends to skew towards the Magic Side, but there is overlap.
    – кяαzєя
    Mar 30, 2014 at 22:59

1 Answer 1


Most psychic powers are created by science. Normally, an Esper doesn't have a special ability and only gains it by experiments, special drugs etc. See Power Curriculum Program for more information.

There are some (at the moment 4 known of which only 3 occur in the original works) people who have esper-abilities without being part of the Power Curriculum Program, called Gemstones. The only one that occurred in the anime yet is Himegami Aisa (appeared in Index Episode 7 (Deep Blood Arc)).

Touma himself has no psychic power, his power is of unknown source.

Thanks to Krazer for mentioning the Gemstones in the comments.

  • Touma's power isn't considered an psychic power because he doesn't emit an AIM field which espers and gemstones do.
    – кяαzєя
    Mar 30, 2014 at 15:58

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