Kdrams: to begin in misery or hit you with at episode 5ish

I divide many kdrams into two sorts: the ones that lure you in with a few episodes of happiness (often involving first love and gorgeous scenery that is just there to lull you into a false sense of security) and the ones that think that is for weaklings and decide to start off with the misery in the first five minutes and keep ramping it up from there on in. Cinderella's Sister is clearly of the second type which makes me fear for what horrors they will spring on us in episode 5 or so, because you know they've only been honing their skills in the angst department in these first episodes.