Oh, I'm quite interested in this.

I haven't watched Index/Railgun in a while though, and have yet to see the second seasons, so my memory's fuzzy on some stuff. Though my main concern is, is it possible to have the ability to erase memories?

Not that I would ever use it on another player, mind you, it's just that my character's essentially comic relief, and tends to wipe her own memory to forget stuff she does not want to think about.