The plot resembles an alternate reality, where instead of the heroes guild in school, during the fights did not use magic, and the means available to make direct reference to the original story, "Fairy Tail". For example, Natsu during battle uses hot ketchup, coal and Molotov cocktails ("fire"), Gray - ice cream ("ice"), etc.
Unlike Edolasa, who also was a parallel world, the characters remain the same. At the tail instead of legs of Aquarius.
With regard to rank, some characters are reversed. Makarov - an ordinary student like Natsu, Gray, Lucy, etc. But Happy - class teacher, Charles - Director of Studies, and pluralistic - Director.