I was completely blind when i first watched this drama. I didn't know the genre, casts, and i even haven't read the blurb. When i watched the first episode i feel like want to drop it because of the FL's behavior, just by the half of the first episode i learnt that this drama told about time travel and it was holding me to keep watching the drama, oh and also because i could see that there's development in FL's behavior. And i have no regret finishing the drama.

Technically, the story wasn't perfect. The story has many things unexplained, like who was actually made the FL went to the parallel universe, why at some points when the FL deleted the messages she couldn't go to the past, or the condition of ZWS in the main universe. Oh and i also felt a bit draggy when the drama went to the point where the characters graduated, but it's really just for a brief moment and when i finished watched the drama i could figure out that the moment represented a calm before the storm, the bridging of the story to meet the real conflict. For me, the overall story was still really good, beautiful, and made me cry my eyes out:).

I love the tone of the drama. The editing and visuals that this drama displayed were really pretty. The OSTs also are really pleasing to hear. And the acting of the casts were really good. i could hardly felt the cringe moments throughout the drama. some people said that they can't really tell the differences between the present day and the past because the obvious thing that drama showed to differentiate the past and present was the phone , but i didn't find that disturbing (it might be because i was already really hook up to the story:)).

P.s. it's been a long time since i felt really afraid to watch the last few episodes of a drama.