[If you please, ignore the star rating here. Because, again, this is one of those reviews that should get no star rating at all from me, since my subjective feelings and my objective knowledge of the quality are at odds with each other.]

Kiyoi's and Hira's love is a twisted one, one that is more co-dependency than love. One feels that his only meaning in life is to adore the other. The other needs another person to look up to him. It reminds me of the relationship in "Double Mints", just without the drugs and violence.

I can see that this is a story that fascinates a lot of people -- it's raw, painful, and beautiful in its pain.
Additionally, the quality is exceedingly good. The actors are excellent, I don't think any viewer could imagine another actor in their roles. I love that the drama tells the story as much through sounds and silences as through visual elements, colours and inner monologue. The script is tight, and there's not a second that is unnecessary for the story.

For me, though, I would have needed a different story-telling to enjoy this drama. As a victim of bullying myself, I would never be able to adore my tormentor, even if I would have found them attractive (and, sorry, I don't find Kiyoi attractive at all, let alone beautiful). I cannot, for the life of me, see how Kiyoi's non-action (he just enters a room!) is more impactful for Hira than his college friend's active support from minute one.
Maybe it would have helped if I got to see Kiyoi's internal struggle earlier -- but then, he does not seem to see anything wrong with his actions during high school at all.

I do understand that we need stories about twisted and painful relationships, we need more than just sugar-coated rom-coms -- it's just that this one with it's central theme of school bullying is not the right story for me.
So, if you ask me: Should I watch it? Then, yes, absolutely, do so. Even if you, like me, will never understand their story, watch it just for the outstanding performance and the beautiful way this drama was made.