Eight deaths left. Seems the author's aiming for a short series, about 70 chapters or so.
I wouldn't agree with the reader who said this is torture porn. He does seem to be getting slowly more resourceful, especially as Hyuk Jin; and less self-centered. But whether he's going to learn to regard death as something of great magnitude, as she wants… with this death, he's learned what torture and slow pain are. Right now, there are very few things that should be able to scare him, including her threats.
The endgame might be his succeeding her in the job.
Incidentally… an intriguing analogy for the motivations of a sociopathic serial killer. Less forced and contrived than most demented speeches we see by villains in manga and the like.