Plot plot is simple. Another urban legend. About Observer. Misaka begins to periodically feel at someone`s eyes. the observer himself invisible, and the presence of sight inspires her panic. Also,as it turns out, it is not the first victim, and one of the students Tokiwadai have suffered because of this. Of course, the trigger Ruyko Uiharu and decides to find out what`s the matter.
Images and photos of A Certain Scientific Railgun OVA