It took me a while to understand the meaning of what she said, and when I looked at her, I found that it is what she said and what she said isn't just an expression.
The miasma is really not touching her body; it is just coming close to her before repealing back. It feels like her body had something that miasma did not want to come into contact with.
Something like this happened with my own energy. I had noticed this factor when I am healing the patients.
When I am researching Miasma in my quarters, I had touched with energy that was devoid of rule-bending power. That time, I saw the miasma and my energy are repealing against each other.
Which I found very strange; the repealing force was weak but visible. I first thought it is because of my inheritance energy, a cocktail of many energies, but when I started to experiments, I noticed it is because of Beast's energy present in runes.