It's a good show. I'm mid way through it. But till now, the Kang Sisters are irritating as hell! Si-Yeoung unbelievable foolish at times and I think she lets others walk over her, like her sister. This is such a contrast with how she was initially as the prison medical officer. It's a shame that she's the FMC... She stalks the professor, reads his files without his consent, eavesdrops on his conversations with patients - how has nobody found this to be a grey area? There are so many polarities in her character that she really really, jincha, irritates the life out of me.
The sister in the other hand is just so full of hatred and so vindictive. I can understand she feels bad but she behaves so righteously as if she has the right to judge everyone else around her. Urrghhhh ... So irritating.
Other than that, it seems to have a good plot and Im waiting to see how it turns out.
But if Si Yeoung continues with her stupid antics then this will be one of the series that ends up in DNF pile.