I came here after watching the dorama and some comments said that the manhva is actually better. Taking in account that I binged the series in 1 day I have high expectations :)))
This manga is one of the best. Totally recommend it for reading, It will open your eyes on many things. I knew about IS before but theoretically. And I'm happy that I stumbled on this manga, as it helped me to understand IS from more human-like, relationship-wise perspective.
Is it finished?
I have a feeling there's more to the story...