It seems that when it comes to visits, it leads to a path of death.
Cheong knows that's not the case for her, but following along with a "Wow, an enemy!" feels too suspicious and doesn’t seem like a pleasant sight.
So it needs to be somewhat convincing.
Fortunately, a scientific methodology had been presented in her hometown regarding this.

First: Shock and denial.

“An enemy? An enemy? That's ridiculous! I've never had an enemy! I sent everyone off together as companions so they wouldn't be lonely on their way to the afterlife! Where do enemies come …