It was Poseidon and I watched in 2013. It's no the typical kdrama to start with but after Poseidon I watched You're Beautiful and it's probably still one of my favorites. I would like to rewatch You're Beautiful, even tho I guess it won't be as great as when I watched it while being 16. Now that I'm 26, I think the biggest shine of that (still great) kdrama would be gone, unfortunately.