Also the evil kuro miko is the one who cause the destruction of the miko and kannushi clan in 8 years ago after being freed by her 700 year imprisonment inside a mirror due to being defeated by a First Ninja and a heroic sacrifice of her rival miko and had been hunting Theresa for her lifeforce as she only stole/drained her immense spiritual powers because an evil miko wants her lifeforce to make herself more powerful than before.
The only physical trait that Theresa had related to her miko heritage is her red sakura-shaped birthmark on her forehead hidden by her bangs. If Theresa regains her spiritual powers, her hair will grow long and turn white while eyes turn gold.
Why the evil miko destroyed her former clan is out of petty revenge on/to spite her rival miko and a First Ninja and why she freed from her prison because Mcfist and Viceroy broke her mirror (albeit unintentionally) in 8 years ago.
