To sum it all up, I didn't know whether Kuroshitsuji was the name of a cosplay group in general, or a new series I haven't heard of yet. Since it seems like the latter, I'll just come dressed as myself and learn more about the series.
I know coming in a cosplay not related to the theme is about as bad as not wearing a cosplay at all, but at least I won't be an eyesore to the group. Yet I seem to have no cosplays for any new meet that might spring up unless it was open and not limited to the theme. I understand that what I've been doing in the past was unknowingly trolling, and to those who have seen me before, I'm sorry for being so desperate as I was.
I know the basic format of a meet is:
Pick a theme, decide if it's open cosplay or limited to it.
Throw out a date, time, and place in the future and see if interest grows.
The interested group may ask for a more flexible day, time, and/or place that everyone can make it to.
Count down the weeks, days, and hours until the meet rolls around.
Celebrate with fans of a similar interest, or the established theme.
With that in mind, I guess I'll just play it like it is.