>>282132741
They talked a bit about it at Moriwaki book. In geddon's case, it came into a point they were so close together they feel like living in a different world of their own. Hence why the abstinence of parents.
But now we mention this, Mii parents feels kinda shady huh. It weirds me as fuck that her grandma called mii to call about them instead of themselves as if they're being avoiding her on purpose.

>>282076839
Why don't you ask them directly? There's no definite answer but maybe there was something that caught their attention first. It's a fun experiment to ask. Do it.