What should princess DJ do at night?

In nightclubs in various cities. Uniforms are everywhere. A young girl is holding a drink. Term of office: KTV waiter. Commonly known as: princess. Let me introduce the characteristics of the princess to my friends. Native place is not limited. Age; 18 - 24。 Officially go to work at 7 o'clock in the evening. Go to the designated place for the meeting. Please clean up in the designated box after the meeting. When it's all over. Rest until 7.40. Platform. Make up lightly. Stand at the door of the box in a standard standing posture. Waiting for the arrival of the guests. The guests have arrived. The princess provides the service that any waiter should have. Of course. Why not call the princess but the waiter? There are some clues in this. Some princesses are young and beautiful. Guests will be invited to drink and dance with them if they like. Of course. You have the right to refuse. Let's talk about salary: the princess has no salary. The company stipulates that the princess service should be paid by the guest's tip. Generally 200. Even more. It depends on the overall level of the evening and the generosity of the guests. The princess has no salary. Do you think tips are high? Actually, it's not like this. The princess has to pay 700 yuan management fee to the company every month. And there is the task of booking a car. It is stipulated that each princess should complete the consumption of 3000 yuan per month. If it's not finished. Management fee overpaid 150. The company does not provide accommodation. The princess takes care of everything herself. Take five days off every month. If you have something to ask for leave. Just give it to the company 20 yuan. Break any one and pay the price. The smallest project. 10 yuan ashtray: 100 Yuan Mai: 800 yuan gets off work every day. It is necessary to check whether all the items in the box are complete. If the guests leave before one o'clock. The princess is not allowed to leave her job. I can't get off work until one o'clock. If it's late. When will the guests leave and when will the princess get off work?