Momoi:
It's not that I didn't like it. It's maybe too clichéd for my normal drama taste, but I still wouldn't say I disliked it. When it aired, everybody went crazy over it, so I thought you might like it.
But as I edited my previous post, I would say that Pinocchio and Goblin might suit your taste then.
I revised my watch list and found some more you might want to check out.
Doctor Stranger - It has Lee Jong Suk as a lead, this series divides opinions - some like it, some don't
Faith - Historical, time travelling, and again - some liked it, others didn't (I think this is always the case with "most popular" male lead actors
Moon Lovers: Scarlet Heart Ryeo - again historical, it has everything from comedy to tragedy ( in that order)
The Legend of the Blue Sea - Fantasy, Lee Min Ho
My Love from the Stars - Fantasy, Kim Soo Hyun
And... if you're open for chinese dramas, there's Princess Agents for example.