Tojiko is a ghost. Ghosts are like the privileged daughters of the underworld.

All ghosts, including her, can be touched and felt.

Of course, we are able to feel Tojiko.

But those legs...

...looking at them, they could be the legs of a phantom.

Phantoms cannot be felt. That's their nature. Basically, they're just air.

If her legs are the same as those as those of a phantom, then we shouldn't be able to feel them.

And so we can conclude that there is a part of her that can be touched, and a part that cannot.

The question remaining, is where the dividing line is. Are you following me?

The problem is that your explanation was too long.

That's it!?