Ok, let's turn the chess boar... I means put the detective hat on....
We know that Koharu related to the boy that A-chan sorta close with in 2000. So it means: in 2016 Alternative Universe 1, A-chan either adopt Koharu (Case 1*), or she marry Koharu's dad through that boy (Case 2**) and took her in as her step-daughter. Hinata could be A-chan's blood daughter, but it's unlikely consider they all have different hair colour (good indication in manga/ anime).This is consistent with Alternative Universe 2, as if A-chan is confessed by Rinko, she does not get close to that boy and never associate with Koharu. She then later goes to uni, meet some nice guy, marry off , have a good family. Rinko managed to get over her love, and Shijou swooped in.
*Case 1: A-chan character could be more complex than we thought. As she adopt not only Koharu but at least Haruhi also. She then pass them to Rinko, most likely to protect them (while act like an evil mother) from loan shark/ their real father/ whoever guy she has to hook up with to manage her debt.
**Case 2: A-chan is a bitch who just jump between different men, and rid their kids off to Rinko so they won't get in the way.
PS: just want to say..... Holy fk Hinata and that rabbit were just so freaking adorable. Must protect!! Also Shijou-san is full of waifu-materials. She is a keeper, Rinko!!
last edited at Jun 28, 2017 11:15PM