I think it makes sense that it’s tagged shounen ai considering the whole series revolves around Yoshiki’s grief, a grief that is specific to the death of his first love, a boy. Also shounen ai has never strictly been about depicting an active/developing romance but rather the lives of queer boys and men and how they deal with the various emotions, trials and tribulations of liking/loving other men.
I'm saying that it shouldn't really be tagged as such because many will run, thinking it's a romance. But you're right, part of the story is his grief
Tbh I'm grateful for the tag. Just don't browse the other tags specifically much, so probably would've missed out on this incredible read
I personally just read anything that catches my eye so I would have seen it anyways lol
I kinda get the shounen ai argument because it really did not need to be tagged as such. Yoshiki liking past Hikaru shouldn't really classify it as a shounen ai since it doesn't hold the same weight as the other tags unlike with actual shounen ai. Either way I hold this manga dear to my heart, it's just an amazing story that I am snagging as soon as I see at a con