I'm not interested in joining, but here's my two cents.

I don't think your role play should have a main character. Why? It makes everything less interesting for everyone else when all the focus is put into a single character. People don't join role plays to be sidekicks or simple love interests. They join so that their character can have an equal part in everything in comparison to every other character in the role play.

You don't have to change it, I'm just thinking that your role play won't get very much interest once that main character role is filled.