[@Drake Baku] Don't worry about being annoying, fleshing up a character is one of my greatest pleasures as a roleplayer.

Now, to the answers:

If you prefer so, you can think of her as the Korean breed of of kitsune, the ones that are actually said to be soul sticking demons.

Indeed, she does have to defend herself to use her powers, even if it's just by reflex. Unless, of course, she's on balance breaker mode, then the effect covers her full body, though she can deactivate it if she's not berzerking.

I guess the ability would indeed hurt whoever, or whatever, touched her but she isn't strong enough to outright melt the bodies of magical creatures unless they are really weak.

For the soul sucking ability, I think that unless she's berzerking it would work only on point blank range, like in a kiss, but of she's then it covers about the the size of a soccer field and is indiscriminate about allies and foes. Both the range and and power are bound to increase as she gains more tails.

As you can see, her parameters increase drastically when she's not under control, but she becomes a threat to anyone close to her and that's why she doesn't like to rely to much on the sacred gear power.

Also, don't let my overexcitement bother you, it's just that I'm a little too hyped for this.

Off question:Does promoting to rook allows a pawn to change ones with the king? I really don't know it since Issei only ever promotes to queen.