This is a "nice" introduction to a story... In certain cases, a few sentences arranged in isolated paragraphs could be counted as a Preface...
The problem I truly see is that this is a CATS Forum - a place to talk about the Musical. Although you placed an announcement of seeing CATS, the majority of the posting is this story - which does not seem to be a CATS fanfiction at all... My suggestion is to either go to the FanFic Board (See the links above - far right end...) and place the story there. OR, go to FF7... Either way, this Forum is not for posting stories...