I always forget that Furuya doesn't really write endings. I should probably stop knocking off stars for it, when it's clearly a distinct and intentional style.
And I just really like how Furuya writes. It's gentle, with aches that never hurt too much but still convey the depth of feelings. And even when characters make mistakes, they're fixable, as long as they take the time to have conversations about them.
I was a bit surprised Yusei kissed Itsuki on New Year's Eve - but it worked better and more naturally because Itsuki was the one pushing Yusei until he broke. And then it was a little awkward for a while after, but also not really? Their friendship is just that solid, even when Yusei is pretending he's not in love with Itsuki, and Itsuki is pretending he doesn't know.
Itsuki is a kind of strange beast. He's good at everything and interested in nothing and a little bit self-centered but also considerate of others. He's used to people disliking him, he tells his brother when they finally have their long overdue conversation about why he's been avoiding him. Hearing that makes his brother cry...he'd said cruel things while venting on the phone with a friend, but he'd never actually begrudged his little brother anything or stopped being genuinely proud of his accomplishments. Sometimes it's just hard being the less talented sibling.
But Itsuki says no he's used to it...it doesn't really bother him when people hate him, because he's learned that he's okay with who he is. It's still a little bit of a lie, I think, because his brother's words genuinely did hurt him; he had to escape to Yusei's that night to process his emotions. But in a way, it's Yusei's steady support that's made him learn to be content with who he is, without trying to pretend he's less smart or less skilled or any of that.
Yusei isn't bothered by Itsuki being exceptional. He's extremely unflappable, at least with anything other than his romantic feelings towards his best friend. He calmly tells the other guys at school that no, he's not jealous of Itsuki, and if he was, he would just put that energy into working harder himself. Why would he put anything negative on a guy who's done nothing wrong? It's not Itsuki's fault he's smart and athletic.
Honestly, I do get this whole storyline. Itsuki is a bit over-the-top Good At Everything, but sometimes that's just how things are.
I went through a few years in middle school and early high school where I was just...smarter than the people around me. Better at school, anyway, and able to process information very quickly without all that much effort. It sounds like bragging when you say it bluntly...which is why you learn not to talk about how good you are at things or how little you actually studied before acing an exam.
And the majority of my classmates disliked me for it. Not because I flaunted it, or rubbed it in their faces, or actually thought I was better than them, but simply because it came very easily to me, and the teachers and school always put me in the spotlight, and my classmates were young and frustrated and talking spitefully about someone else is how you deal with your own insecurities.
As I got older, I met more people who were more like me, and I stopped being embarrassed or guilty about how much I liked reading and learning. That's going to be true for Itsuki - with sports as well, I think, if he stops resisting everyone's attempts to recruit him for their teams. He'll meet other people who aren't intimidated by him and who enjoy being around someone who can push them to their limits.
I would've liked to see a bit more of Itsuki actually developing some interests. There was an interesting snippet of conversation with a teacher whom Itsuki says he'd wished he'd known back in middle school, when he'd given up on soccer and had intentionally tried to do badly on some tests. But it's entirely realistic for that to not happen in high school; Itsuki is probably someone who'll start flourishing and finding his interests midway through college. Right now, he's fine just kinda doing what he feels like and waiting until something sparks his interest.
The main thing he cares about is Yusei. It was pretty unusual to have a situation where the love interest has known about the pining the entire time. It gave Itsuki time to sort out how he felt, though, and to take Yusei's feelings more seriously, before Yusei ever had the courage to say them out loud.
I like that when they start dating, their relationship doesn't change; Itsuki is still a little bit of a flippant jerk, but not in a malicious way, and Yusei loves that about his personality. It's clear that they mean so much to each other, and that they'll continue to support each other in their futures. It's very important, too, that Itsuki has always genuinely supported and encouraged Yusei's writing. It's an area where Yusei excels, and Itsuki is incredibly proud of him and amazed by his way with words.
It's just a very feel-good story, with the rest amount of aches.
I was surprised, too, by how good the rejected girls were. They didn't stand a chance with these guys, and they weren't heartbroken or angry about it; they did their best, and they understood the rejection, and they consoled each other and moved on, because they know that for them, at least, this is still youthful crushing that isn't going to change their lives. It's all very refreshing.
Would still like to see a bit of Yusei and Itsuki in the future, but I'm learning to live with Furuya's open endings. You don't need to see them in college or in their careers to know that they're going to stick by each other.