It was his best day on a job.How to find out that an employee of an establishment is a passionate yuri fan without asking him whether he is a passionate yuri fan.
He seems to be a waiter who was bringing them refreshments ,which are usually ordered by the customers, so he was basically called, it isn't creepy.Isn't this a typical rented karaoke room deal? If so, a little creepy that employee was instantly there to "intervene".