I'll be very honest here. This one is emotionally taxing to watch. You might feel annoyed and frustrated with the characters and the storyline and how it seems so out of place with how cruel it can be toward any character, it might even be called 'toxic' in the first few episodes- a toxic friendship , but once you go on and watch the rest, one thing is for sure. [[[It might contain slight (nothing major from the storyline) spoilers. ]]]
That is, the more you want a particular character to get hurt, the more you feel bad inside and just want it to be over. One of the reasons why it's so emotionally exhausting. Also, what I truly believe is that Love is not about "redemption" or "vengeance". It's about feelings. And no matter how much you use your brain to weigh the situations, you canNOT ignore your feelings. No matter how much you're hurt, no matter how much you see the characters getting hurt, you won't feel any better until they finally have a good time together. So what I would say is to watch this while keeping all of this in mind. And at the same time, know that this story is about something so abstract that even the wisest of people won't be able to interpret it correctly. It's pure Love. Blooming from friendship - a toxic friendship.