What would your muse be doing right now if the war had never happened? How would their life be different?
I think this depends on where Fenrir would stand in this scenario --- would he still have his pack?
If not, Kimiko would have grown up with her biological parents and life would have looked very different. She was born to two halfblooded wixes, and would have grown up in the country of Norfolk, England. Life would have been stable and safe and not perfect, but a whole of a lot better than it is now. ( But, to be fair, not much is needed for life to be better than it is now. ) Kimiko would still have been an edgy bastard, would still have been prone to criminal activity, but all in a much lighter way. She would be less apathetic, that’s the main thing. That’s where it all goes wrong, to be honest, in her inability to truly care about most things. She would care more, would have more reason to care --- because what does it matter now if she earns good grades? If she makes friends outside her pack? She fails to see the use in a lot of basic things, and I think she would, then.
If Fenrir would still have been in the picture, I think maybe Kimiko would have -- maybe -- started to look at life more critically and consider her loyalties and wonder about what she truly thinks and feels, rather than follow blindly. But who knows? I sure don’t.
Would your muse ever consider making a horcrux? Alternatively, do you think they’d be capable of destroying a horcrux?
No. Kimiko doesn’t see any reason to have more than one life. She doesn’t really value her own that much to begin with, so to split her soul so she can live on if she dies ... well shit, that sounds bloody exhausting. Death is death. Once it comes knocking on her door, she’ll gladly follow.
And well --- I guess she would be capable of destroying one, but only if she had good reason? Maybe if Greyback had horcruxes, she would want to destroy them, but at this moment I don’t see her having any reason to destroy any horcruxes and put herself through that amount of stress and work.
Would your muse be capable of using any of the Unforgivable Curses? And would they ever do so or have they ever done so in the past?
Only the killing curse. Imperio is the scariest curse to Kimiko, I think, as the idea of not having free will is terrifying ( ironically enough --- she does have free will, of course, technically, but it sure as hell doesn’t feel that way, with the impact Fenrir Greyback has had on her ... well, everything ). Crucio is cruel and harsh and Kimiko might be amoral and apathetic, she doesn’t get off of hurting people physically. Killing someone is --- well, the killing curse is almost merciful, she thinks. Compared to the curses Death Eaters like to use, it’s kind. It’s a quick death, painless and easy.
Though, I think context is very important here --- if she was put in a situation where she had to do it, if there was pressure from Greyback/Death Eaters, she would most likely do it. Self preservation is second nature to Kimiko, after all.