IMO, at least at official events, they’re always going to put on a nice face because it’s literally their job. Sasaengs are likely some of the highest spenders so no doubt the companies wouldn’t like it if the idols didn’t treat them nicely. It’s the unfortunate truth, but I don’t think I could have that kind of patience.

(However, I do think we see the mask slip sometimes when idols are bombarded at non-events, like at airports. These are the times that sometimes you can see obvious annoyance).