The invisible idiot goes pranking!
Status
Summary
Natsu would love to prank the whole guild. He just doesn't know how, until he somehow gets invisible by an old lady's potion. Now it's payback time for all the moments he had to sit in the train for hours and hours. And for some reason Gray is the most unlucky one of them all. Will he get away with this? Or will he get beat up? Read to find out.