My first impression maybe one or two episodes in was to wonder how will they get 16 episodes out of this basic set up. As the story unfolds layers of hidden reveals and story twists emerge to justify those 16 episodes. On rewatch I appreciated the foreshadowing and reveals placed early on but which require that second time through to fully get.

For example, pay attention to the flashbacks connected to each character. In particular and I say this without spoiling anything note the flashbacks with the main male lead. These point towards whether he does or does not remember certain events and who he really is.

I enjoyed the steep character arc of the main male lead, but also the less obvious arc for the main female lead.

All in all a very entertaining story that improves the second time through.