Oh she is in her School, make sure to get a Quality Ticket from the Tattoo Shop.
The School is at the Bottom left of Upper New Ark. Then look for the Cafeteria she should be surrounded by her Friends just go close to her.
So if you have been to the Slums there is a Tattoo shop, you must have a Bad Ticket for this, feed the All Knowing Hobo the guy underneath the Don's home.
Feed him till he Mentions a Cheap way into UNA.
Go to the Junk Vendor, at the Shopping area of the Slums, he now sells tickets.
Buy a few or one, then go to the Massage Parlor.
Go to Lin-Lin after paying the Front receptionist, and get a Massage.
Everything should be explained by Lin-Lin there but Basically just bring a Bad Ticket to him and he will fix it up for a Price.
It's a sure way to enter UNA.