Awesome Art: As expected from KyoAni, the animation techniques used for the anime all contribute to capture the atmosphere of the setting. The original novel is just as breathtaking.
Jerkass Woobie: Eisuke Nikaidou. He is so unfriendly in front of those he takes a very personal grudge against (in his case, Minato and Shuu), and yet so emotionally vulnerable in front of personal issues.
Ryohei admires him and wants him to join the archery team, stating that he wouldn't want to be on the team without him.
Seiya is extremely protective of him (to almost a Yandere degree) over believing he's the cause of Minato's scar and his mother's death that he follows Minato to Kazemai despite it being a school with a lower social upstanding. He is quick to defend him from Kaito and finds Masaki suspicious at first.
Minato deeply admires Masaki, and he is the reason why he was inspired to rejoin the archery team again. There's also some visual focus on their relationship in the opening and ending sequences.
Kaito clashes with Minato at first, but they're actually not so different in terms of interests and episode 6 was dedicated to them bonding and becoming Vitriolic Best Buds.
Shu was Minato's best friend since the 5th grade, and his interest in him kind of comes off as almost Yandere-ish depending on how you interpret the text.
Ships That Pass in the Night: With Masaki, Seiya, Minato, Kaito, and Nanao getting tons of moments with each other, that leaves Shuu and Ryohei without a major pairing. They're sometimes coupled off as a Pair the Spares duo as a result, despite their lack of interaction in the first book or the anime compared to their teammates. This becomes less so after they start bonding in later volumes, or Season 2 of the anime.
So Okay, It's Average: While the anime is one of the less popular and well-received KyoAni works due to reviewers and audiences finding it to be by-the-numbers as far as sports stories go, it still praised for its art and focus on a more obscure sport and has done well enough to continue after Season 1.
Unconventional Learning Experience: Although mostly intended to be a standard sports Slice of Life, Tsurune goes into extensive detail about the ins and outs of kyudo. Details include the special ceremonies performed at the beginning of a match, the gloves the characters wear when pulling the arrows back, and the general philosophies around it.
Woolseyism: In Episode 13, Nanao calls out Minato's Accidental Pun when he says he's going to contact ("renraku" in Japanese) Ren. The official English subtitles rework the pun to make it more relatable to the international audience, by changing it to "shoot Ren a message" since they're archers.
