Yakuza - They run the hotel and are the people the whores report back to.
Whore - Prostitutes that report back to the yakuza as their higher ups. You don't work this area unless you work for them, period.
Hotel Worker - Front desk clerks, maids, repairmen; if it can be done in a love hotel, you can have it as a job.
Civilian - everyone else; be whatever you want to be here; and most of all... be a patron.