Family tree
ok it was a little confusing but I think this is how the family went.
Grandmother (paternal or maternal don't know)
Father
Mother (step-mother to the son?)
Son
Eldest daughter
Mirai (youngest daughter) - this one got me thinking when the father and mother are talking to the eldest daughter it cuts to the youngest hearing them talk about the older girl being pregnant at 16 and coming home.
Does anyone think this means that Mirai is the granddaughter of the father and mother? This would explain why the son was harassing the little girl as his half-niece as opposed to a little sister. And was he sexually abusing the little girl?
What do you think?