@Dumisa, alright, everythings on reserve for you~
@Ivy, I haven't really thought much through the whole bond thing, but what I imagined it being in my head is that when an Aerea is born, they really only have half their spirit in a sense, and when the Espirit is born, that's the other half. They are two halves on the same spirit in different bodies. One cannot be as strong as they can without the other. That's really all that is to it. If you're curious also as to how they find out one another is bonded, well they would just come across one another when they were toddlers in some form of matter and they would just simply know.
As for your second question, the story would start with first entering the house hold. I would have the first post, so my character would be the first to enter, and as the other characters file in, then they meet up with each other. At the beginning the kids have no idea that they are going to be living with one another or that they would be reunited, they just thing they are getting fostered into a new home. They figure it out once they get there whats really happening.
I do have a couple of questions for you however before I let you take up a reservation, which I will message you about in just a small bit~
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