Oh God I love that kiss so much. While I love almost any kdrama kiss (there aren't a lot of bad ones!) I love the ones that are animate and look like they could be real kisses (as opposed to just lips meeting).

Eric Mun is so massively dreamy. Mmm I want to picspam him now. Perhaps later today. I cannot believe some people disliked his QSS hairstyle because while I like him with longer hair, QSS-Eric was just face-melting goddamn hotness, no questions asked.

Though I can't help but ship Rich Bitch and Icy Quasi Sibling (who is hot) though I don't think it will go anywhere despite the awesome kissing scenes.
I loved the realization because good god that was one hot kiss, regardless of whether you ship them or not.