The multiple timelines really brings everything together, and this is the first CDrama I watched that wasn't some happy and chill romantic comedy related to divorce or high school. Very dark, thrilling story, with everything coming together at the end, making it pretty hard to rewatch but amazing the first time around. The suspense is real, with amazing music and cinematography and actors that make the characters feel so realistic. I don't usually write reviews, but this piece of art really stuck to me and I rank it among the same tier as TV Shows such as Game of Thrones (earlier seasons), and it truly felt like an adventure watching it with my native chinese parents who understood it better than me most likely. Of course, there were some tiny plot points not explained in the end but they were not too important, and everything truly tied together and made the story bittersweet, as it truly was dark and sad with some hidden and obvious messages towards the end. WATCH IT 10/10