nah, its cause yuna is straightforward and rio finally realized, thanks to yuna, that his feelings towards akari was merely his confusion as he grows into a matured adult. honestly imo, i think that its the other couple who felt like a bit forced. i agree that their chemistry was developed better than the main couple, but like ugh the details were always added so sudden like the moment when kazu saw rio and akari kissed, then the final chapter when it turned out that the window scene at yuna's place wasnt their first encounter. tho it took me a while to understand akari's feelings and her behaviours, by the way she acts and stuff (yeah, i admit i hated her at first), i also find her really annoying with all her secrets and white lies, the same goes for kazu
honestly just read it for yuna and rio, i find akari and kazuomi really annoying