This was an amazing series, but (maybe unpopular idea) I don't think second season was necessary (of course with this ending it is), I think it would be better to have the good ending already. Oh sorry, I realised now that it is based on the novel, it makes more sense to have second season, but the closure would be perfect in the last episode... For the plot, I wouldn't take Kwan's side, she couldn't let Korn leave, (she tried to leave for very long time) and started to be dangerous (with black magic, who knew what was coming next?..) Nothing justifies killing a person but I would say that Kwan's insane behavior led for her own tragedy, not a single character is a saint.. (okay maybe Win's dad, he's precious). People do break up when they are unhappy together ot at least one person is unhappy, the normal partner would just accept that, who in their right mind behaves like Kwan? It's so sad that therapy wasn't an option in those times and now her soul only just now started her healing process