There are a lot of good parts about this series. The strongest one being the acting, especially from the female lead, Kim Go-Eun. Her delivery is incredibly good. I also really liked the suspense and action in this series.
Most of the characters are really well thought out and developed. The story is told from the perspective of all the different characters and their stories. All of the stories are intertwined and end up being connected to one another at some point. This part of the story is executed very well.
Even though most of the characters have great development, I feel like some were still definitely used as "filler characters". I also feel like the plot in general has some inconsistencies and plot holes. Some aspects of the story were confusing to understand as well. I think the ending does kind of pull it all together though.
Most of the characters are really well thought out and developed. The story is told from the perspective of all the different characters and their stories. All of the stories are intertwined and end up being connected to one another at some point. This part of the story is executed very well.
Even though most of the characters have great development, I feel like some were still definitely used as "filler characters". I also feel like the plot in general has some inconsistencies and plot holes. Some aspects of the story were confusing to understand as well. I think the ending does kind of pull it all together though.