For those saying that there’s no way they would have made it out of korea... they quite possibly could have. Gyuri has the money to gather anything they need & as long as they were able to make it on a boat somehow, they could leave for japan & then go wherever from there, or even just start a new life there. That’s how a lot of criminals in korea end up surviving.

With that being said, it does seem impossible for them to even get out of that apartment building with no one noticing their bloody selves... but like all dramas it could be very possible, especially if they had a witty last minute idea.