Mangaka-san can do much more for this couple ! Where is the families ? Where is the dates ...

Actually, there were dates, ex lovers and family issues already... ;) Read it from the beginning one more time and stay alert. ;)

Well to be fair we saw part of Kabu's family (his sis) and an exlover (of sorts xD) of Onoe's but we have yet to see any family of Onoe (does he have siblings?) or an ex of Kabu. It would be interesting if Onoe had an older brother or something.

Kabu has a pile of exes, but he never got really close to anybody, maybe that's why there are no specific characters like exlovers mentioned (although there are those he slept with casually).
Yes, I'd like to see Onoe's family as well, as it seems that he only speaks to Masa about his problems. But I think it was mentioned somewhere in the beginning of the manga that he has no siblings, I'm not sure, though. I'll check that later and let you know. ;)

Im not really saying this for particular things like dates etc . Just I love the characters but I feel like something missing in the plot . I would want to read some tension , other than simple daily life . Yes there are some new things but the way maga-san uses these things doesnt excites me so much . And there are already enough chapters but I cant get the full feeling of lovey-doveys.Like they are still strangers ...

I can definitely see the powerful love between them, they have gotten so close since chapter one but I hope she wil continue and add more thing because this manga is so great.