How can one actress portrait a vulnerable but passionately loved woman, (that we root for) in one section of the story, and then wooden puppet treated with polite indifference in other part? And make us feel in accord? I started paying attention when I rewatched this series. Main actors act not only with eyes, but with posture. They make us believe in those emotions. They have a chameleon-like instincts about their respective roles. Which also means that the script gave them sustenance they could work with.
Otherall, what a fantastic introduction to genre I did not know it existed! I have read comment recommending this production to people favouring chinese drama. I think that the series speaks to variety of cultures, and about abundance of universal sentiments. There is compassion, honor, rebelion, obsession, hope, resignation, depth, love, depression, anger. And somehow: characters honesty toward their own feelings, versus just response to the plot.
This is satisfying truly above and beyond Hollywood production, which by comparison seem "rushed before cancellation" and never developed with fulfillment in mind. Downton Abbey or British costume dramas are closest watcheable comparison.
Give this series a serious try. Expect to spend a little time on it.