Option #1:
Start living with mom who came back, despite not contacting in 10 years, but giving everything to be with Aoi.
Option #2:
Start living with father who despite having custody, was away most of the time, neglecting Aoi and near death experience was what kinda shook him out of it to notice he is loosing his daughter.
I'm going with option #1, dad was too focused with his obsession, it was what put an end to his marriage and detached daughter from his life, he has a lot to make up for, but wouldn't call him a proper parent at all...
But let's see how it will unravel...
Thanks for the scanlation!