Lose slot if you delete a character with Cygnus on account?

First of all, hello everyone! I'm brand new to southperry.net and fairly new to Maple Story (just started playing 3 months ago). Second of all, I apologize if this question has already been answered.

Basically, I'm wondering if I were to delete a character on an account with 4 characters (4th slot taken by Cygnus) will I lose that slot because I did not pay for it? I'm afraid that if I do delete it, the Cygnus will then become the third slot and I'll lose a character slot.

Thanks ahead of time for your help