This is one of my fave kdrama. Another one is Crash Landing on You. They both have great leading actors. Their chemistry is amazing! They also have great ost. When I was watching CLOY, it reminded me of MLFTS. I noticed that they have similarities, the story line, it's about destiny. Two people from different worlds. They had crossed their paths before and were met again by destiny. Even the personality of the main characters are almost similar. Then I searched the name of the writer of the two kdramas and found out that only one person wrote them, it's Park Ji-eun.