Oh, indeed.

The rabbit's own willpower is important, but you need the brains for it too.

What's required for a chance to become a youkai

is a fixation on life and wits far beyond your kind.

When one with wits surpassing the needs of their own kind is given the right tools, they'll change form.

If we could give her the intellect needed to live as a person instead of a rabbit

she'd definitely become a youkai rabbit.

In other words, after having lived with people for so long, she needs just a little push to be able to become a youkai.

Master left her in your care because she wanted you to learn how to do that.

...This is something only you can do, Reisen.

Won't you hear her request?