,14) Would they ever want to be a stay at home spouse or parent

A stay at home spouse while there are no kids is a definite no as far as I’d see it, at least so long as she’s . Haruka wouldn’t *have* to work, and I think that’s why she’d want to. She takes immense pride in being able to say she did something or bought something for Michiru with her own money. I can’t see her giving that up.

With kids, though, I think they’d *both* try out stay at home parenting, so long as Michiru continued to have the money to support them. After the first year, give or take a few months, Michiru goes back to work. Haruka, though, loves parenting so so much that she has zero desire to do anything but care for their kids as much as possible. 

Michiru has to draw a line, when the youngest starts school, Haruka has to go back to work, or at least take back up her more time-consuming hobbies. (She can see the empty-nest fall out miles away). Haruka starts suggesting they have another kid as the time draws near, but Michiru’s firm on no more, as she knows in four years thy’d go through this all again.

So Haruka does go back to work, and she’s still an emotional wreck over not being 100% parent 100% of the time, her babies are in school and are starting to not need her,  but it helps keep her going. And later, when the teenage years start and her babies are starting to not WANT her, work turns into her saving grace (though only Mina and Michiru and others would see it that way, Haruka would never think of it).