Choi Cheol-sik, who was unnecessarily setting the mood, carefully opened his mouth.

"Are you not joining Seoul, or is it that you can't?"

Oh, he's hitting the sharp spot now.
The distinction between "not" and "can't" must be because of the citizens’ transformation into monsters.

"To be honest, it's closer to the latter."

"The Association estimates that there are a few thousand of them. Most of them are..."

Choi Cheol-sik lowered his voice.

"Yes. They're monsters. At first, they might be fine, but it's obvious that they'll be isolated from society. So, it’s much better for me to deal …