A lot of the time, these stories aren't really about volleyball, right? They're using that whole 'genius setter' framework to explore insecurity from a really specific angle. The reader character is constantly measuring themselves against this natural, effortless talent. The emotional conflict lives in the doubt—am I good enough to stand next to someone like that? Does he even see me, or am I just another part of his perfectly analyzed court? I've read ones where the reader is another player, maybe a manager, or just a regular student, and that dynamic changes the flavor of the insecurity but the core is similar.
Then there's the loneliness thing. Osamu's so focused and observant, but he's also portrayed as kind of distant, in his own head. The conflict becomes about bridging that gap. Does the reader pull him out of his shell, or do they learn to be comfortable in that quiet space with him? Sometimes it tips into feeling neglected, which can be a juicy source of angst. And of course, the twin element with Atsumu is a whole other layer. Navigating a relationship where you're never quite the 'first' person in his life, where there's this other bond that's fundamentally unbreakable, that creates a very particular kind of emotional friction. It's less about jealousy and more about finding your own irreplaceable space within a pre-existing, ultra-strong dynamic. The good stories make you feel that subtle ache of being the outsider to that twin telepathy thing.