I had naively assumed that them leaving the country would be the end of things, but the way the chapter is framed makes it seem that that isn't the case. I'm guessing they'll run into further trouble where'er they're going, or perhaps the cops will look further into Marie's background and find further reason to suspect her (we do see them discussing her background, followed by a scene of Marie talking about how she can't escape her past and that it's preventing her from protecting Aki, so it seems Marie's past will be important going forward, maybe).
At least we got a cute forehead touch.