It was mentioned in Chapter 3 that Yeonhwa doesn't have a cellphone. Or, at least, she has no mobile telephone number.
its a kton my dude lol logic doesnt apply in a fantasy world. She could do a number of things(last series) she has the wit. I think she enjoys it honestly lol... this is just a build up and dahye dug herself in a hole.
Lol I know, but for some reason, I begin to notice all these things when I use to ignore them before, it's a bit irritating for me making me not be able to continue on with some mangas.
Don't they have phones? Why didn't she just record Dahye's threat? ╮(￣▽￣)╭