![enter image description here](https://i.sstatic.net/mp5IB.jpg)

In the movie [The Villainess](https://en.m.wikipedia.org/wiki/The_Villainess) there is this scene, where the secret agency (I don't get what they are) operates on Sook-hee's face. But it's never mentioned later in that film.

So what did they do exactly?