Okay, well, let me say a couple of things.
First of all, kill the swearing. All of it. It turned me off in a big
way, so much so that I almost threw the fanfic in the trash the first
time I read it. I'm not against swearing in fiction; "Pulp Fiction" is
one of my favorite movies of all time. However, swearing like this does
not belong in a Ranma fanfic. This is not the way the characters are
written, or how they are generally perceived. You can convey the same
emotions, get the same impact, without the foul language.
Second, there are many ways to spell Ukyo's name. I use the "Viz"
spelling. The most popular spelling seems to be "Ukyou". This is
usually just a matter of taste. The only definitely wrong way to spell
it is "Ukkyo". Unfortuantely a video game spelled it this way, and led
some people to believe this was a correct romanization. It's not.
The plot is mildly intriguing. I'm somewhat interested to see how
Nabiki gets out of this one. So definitely finish it, but remove the
naughty words, and find another way to spell the okonomiyaki seller's
name.