So the story is going with the rebirth of earth, I am not really surprised considering how different noahs are. I do wonder how the earl fits in this as he was originally one as a person.
while weird, it's a good thing they straightened things out with each other. Yuuya admits he is socially inept so the attention he got for the first time turned his world upside down, he's not some guy who just lust after kids.