You know the funny thing, Nell? Believe it or not, you may be working with something that is implied in the fanon but rarely touched, "non human/kid sized bodied yukkuri", i like that quite a lot.
Many stories mention yukkuris having baby bodied yukkuris and in many cases abandoning them and such, yet it's rare to see works featuring this "stage" of bodied yukkuris instead of the typical "adult yukkuri grows a body in a moment of it's life".
Keep it up Nell, i would like to see more works about raising baby bodied yukkuris.
harouki - Best way to avoid having to answer uncomfortable questions like "why are you living with a toddler?"
JIE - First of all, it makes sense to me that an enterprising breeder might cater to people who want a yukkuri guaranteed not to get any bigger than ko-size, for example. (As far as I'm concerned, this particular Reimu is only going to be about 8 inches tall as an adult.)
Secondly, the popularity of "The Sims" games suggests that more than a few people might go nuts for the idea of a real, living Sim all their own... with all that goes along with. (Google "sims torture" or "sims abuse" to see what I mean.)
Next up: Plastic hamster ball + rebellious Weimu == bounciful fun for everyone (who isn't Weimu)!