I loved this! 
Picked it up because it's recommended by 방탄소년단 ARMY as similar to BTS universe concepts - I have no idea if it was an influence in their world or mv's or webtoon but it totally could be if you're just looking at similarities and vibes. 
It's well written and I liked all of the narrators. With some books that include multiple perspectives/timelines the narrator switches annoy me but this audiobook is very well directed and cast. I listened to it during the tail end of my long day hike today and it fully distracted me from my sore feet. I was interested the whole time and I loved the ending. It was perfect.