The Spark of Pink Flames

AU! This is my first Blue Exorcist story, so please... be rough. Yukio, in this story, is a normal highschooler. Shura is a teacher at the cram school. Fujimoto is alive. Everything else will be explained in the first chapters or so... Listen, my computer shut down twice in a row while trying to do this summary, I'm not even going to try. Gimme a break. Now... Onnn with the story!