Yea, that's a problem. The plot itself will be kind of complicated...so I don't know how to write it so that non-fans can understand what is going on. For example (this was made up from the top of my head)...
And he landed on a shortcake.
A dark aura started to emanate from the legendary Titania - she wasn't known as Titania for nothing.
'Shit' was all Natsu could think of as he was sent flying into the nearest wall.
How am I supposed to explain Erza's love for cake in this one?