Uhm...
You need to get a Shabby Ticket then get a Massage...
To get a Shabby ticket feed the Beggar Under the Dons place, eventually he tells you about some Counterfeit tickets, for cheap the "Junk" Dealer sells them, buy a Few then get a Good End, or any massage from Lin-Lin, Lust, will drop said tickets and Lin-Lin, will teach you how to get a Quality ticket.
Just make sure to read what Lin says.
Afterwards find Fawn, in her University, this is Basically a milestone for you, and hers Relationship.