In all honesty, it’s the worst drama I’ve ever seen.
Nothing really works, it looks like they released the series based on a first loose draft.
The budget was clearly high, but it was thrown away.

The characters are so superficial, there’s nothing to them. Some of them are poor, some of them are rich, some are evil, everyone is miserable, that’s it.
The actors are clearly struggling, their acting is robotic cause the dialogues are so lame and dull they couldn’t do much to make it better. They did their best though.
All this led to a lack of chemistry among the cast that I might’ve never seen, they’re literally NPCs.

Some cutscenes are so unnecessarily complex in a drama this basic that they’re involuntarily comic (the hacking scene for example), other ones are shot like they’re meant to be epic but nothing happens before or after so there’s no pathos at all.

There also are some plot holes.
The whole female lead character is built around her monstrous father (he is, not saying he’s not) and how she’s so scared for her life yet when she throws up on the heir she’s supposed to marry we don’t see any scenes with his father reacting to that or when she avoids going to America cause the guy was found guilty of drugs possession… You can’t built all of her story around the fact she fears her father the most and how cruel he is and not showing us his reactions to her actions/things that happens to her that would surely send him off.

The plot itself is so easy I understood everything from the beginning, despite the many incoherences. The whole Rian character is built to be ambiguous, is he really cruel or just a dumb rich guy? To build that ambiguity you have to create more depth to the character and as I said, the characters are just NPCs, so it doesn’t work.