Like Korean songs? Here are a few romantic songs, mostly sung in hanguk mal (Korean Language).
Kiss - Because I'm a Girl
A dreamy & slow song, the video seems to show a love triangle, and a tragic twist in the middle that is worthy of any K-drama.
This music video is 8 minutes long.
Taebin - The Reason I Close My Eyes
Another dreamy video, this time in Paris featuring a woman who plays (or at least holds) a violin.
The video is just over 4 minutes long.