I was initially lost watching this series, but rewatching it again incorporating the idea that it is from a society that still learning to openly understand and accept mental health issue gave me a better understanding.
Death provided a medium to see life in another aspect that is worth living. For a society who is still not culturally accepting of mental health, this show subtly brought up the struggles leading to high rate of depression and suicide.
These young artists played their character well enough to manipulate me, as a viewer to think this is a light, fun series but in reality, it addressed the dark side of life.
If only everyone who suffers from depression can have an awakening then a second chance like the protagonists in this story, there will be less suicide.