So basically, in chapter 70 it's revealed that Hachi first born is in fact a boy named Ren (I believe he's Nobu's child after seeing him) and she went and then had a daughter with Takumi?
I'm sad that we'll never know for sure about this
I really hope that we won't need to recomment on each stories... I'm reading so much of these that I need my notes to remember what everything is about （/TДT)/