When I stumbled across this movie for the first time I thought "Huh..." and somewhere in the dark recesses of my mind I started to vaguely recall having read the manga years ago.
So I thought "Why not" and decided to give the movie a shot. And absolutely nothing could have prepared me for how much I've grown to love it.

From the very beginning the movie has a distinct quiet feel to it, a sort of understated grace that is incredibly hard to pull off without becoming boring. But bore me this did not!
The, let's be honest, fairly shallow and fluffy story is given depth by absolutely stellar performances and gains an undercurrent of authenticity and, for me personally, an aching sense of nostalgia. It effortlessly conjures up the absolute, razor sharp, stepping-around-landmines tension of being a queer kid, who maybe isn't even aware they're a queer kid yet, making a queer connection for the first time with such incisiveness that I found myself absolutely speechless.

And that feeling didn't let up. The entire movie is an absolute masterclass in tension. From the recurring theme of archery, the creaking drawing of bowstrings, to the ceaseless push and pull of the main characters' dynamic - that hesitant reaching out and pulling back of two people who are terrified, terrified of wanting but much more terrified of not being wanted in return - to the long static shots, the lingering close-ups, and the drawn-out continuous takes. It all adds up to steadily build a breathless sort of tension until you feel as if you're being forced to walk a tight-rope of emotions.
It's absolutely incredible.

If you like slow-building romances, stories with lots of tension but very little angst, or movies that speak volumes by deliberately saying very little out loud, then I couldn't recommend this movie more.
It's also a very faithful adaptation of the manga so if you're a fan of the source material you'll very likely love this as well.
Go watch it and then go watch the sequel, I promise you'll be in for an absolute treat.