I must agree with you... It's awesome manga, but if there would be less sex and more other things, it would be much more better...
In the last two series ( Itoshikata and Afurekata) they deal with other issues and mostly Afurekata is dedicated to the development of their relationship, according to my POV of course.
I mean, it is classified as smut not romance so that's to be expected.
Yeah but it shouldn't be all about the smut if there going to have an actual story.
I just read this and the art is gorgeous but... I got so bored. This is only sex. That couple doesn't do anything else but sex... They don't go on dates or talk or see movies... just sex