The storylines are excellent with multiple layers and even dimensions of plots and subplots that tie in together rather nicely so far, for the most part, barring some obvious plot flaws. The acting in general is very good, they've cast the right people into **most** of the key roles.

However, maybe it is just me, but the FL Oh Soo Jae started getting on my nerves to the extent that I just dropped this series. She plays her role as a powerful, confident, no-nonsense ice queen rather well, but her grating nasal voice got a bit too irritating for me. When she's supposed to be expressing some deep vulnerability or strong remorse, it looks too fake and forced. She comes across as so one-dimensional that it feels like a fake character, not a real human you can connect with, relate to and empathise with.

The romance plot lines are mostly unnecessary, there's so little chemistry between them that it's cringe inducing.

Compare how Seo Hyun Jin's plays her role as Oh Soo Jae with how the leads play the roles of Lee Ji-An in My Mister, or that of Nam Ha-Neul in Doctor Slump. These roles are quite complex and multi-layered as well, but they hook you, create a connection, and you can relate deeply. With Lee Ji-An in My Mister, I still recall some storylines years after I watched the series - now that's sticky, that's a connection, something this series failed to deliver.

With Oh Soo Jae, I found myself losing the connection even by the tenth episode, I just dropped the whole series when I found myself cheering for the bad guy - now Heo Joon Ho does a stellar job at that role! I give the acting/cast a 7/10 because the bad guys are superb.