Looking at the accessory, it seems that Reimu was a former pet.
You right it like she was refresh with stray and take it home or no after that she born a baby all killed only this wasa seems survived after that the owner take his badge and throw him and kill the stray and also this picture show this reimu was been kick and lose teeth and want his kid wasa to be taken as a pet
Ah yes, you may be right indeed. I was looking for tags that could answer my question, but there isn't. And since she does not look like she is dirty I haven't thought about mold.