It's all making make sense now why ameri have those manga maybe the father want ameri to have a little in human world things she can have in a way to remember her mother who is human and grow up in the human world
Their chemistry was at its best around 40ish chapter; she got almost all the bad people out of her life, learned to stand up for her self, and talked to her brother. despite the shit he did, he definitely had a good influence on her. All until he missed up her brother's suicide
You know it's all making sense why Cecil ( they child in the future) have that stubborn and a kind of twisted attitude so he's like the father