@yeyo69
Because of the title of this manga. It's supposed to be about the first love of this two (nearly 30) couple, but instead of showing about them somehow the story follows the other two people?
I mean I do find them (Kurata and Nakamura) to be wholesome and cute too, but the whole premise of this manga is not supposed to be about them. In fact, I find Kurata and Nakamura to be much more interesting than Inoue and Yamamoto, which annoys me to no end.