I loved watching this drama. It's definitely a memorable one, and probably one of the best dramas I've seen so far. The story's well-written and the mere concept of this story is a first for me, at least in dramaland so far. The acting done by the cast was amazing, everyone did an amazing job in portraying their roles. My favourite was definitely the Scheduler acted by Jung Il Woo. The music was great as well, and always matched the mood it started playing at. However good this drama was, the ending was a bit sad for me. Some people might call it 'touching' but because of it, I don't think I'll be watching this drama again. This drama was sweet, but that last episode just made me cry. And for me, no matter how great a drama is , if the ending is one as this , I won't be watching it again. But however this review may sound, this definitely is a MUST-WATCH drama for everyone. I'm glad I finally watched it after it being in my PTW for a very long time. That's also a reason for me giving this drama a 10. Just because the ending was a 'touching' one, doesn't mean I loved this drama any less, and it definitely deserves a 10.