"Ah, really though."
Dorothy actually just asked casually; she had no evidence, simply a kind of intuition, a mysterious sense of familiarity.
If she had to give a reason, then it would only be the instance when Sister Fallen Angel appeared beside her, and they almost came into close contact — Dorothy didn't find it disagreeable, only feeling slightly uneasy.
This was unusual for her, given her social anxiety. If it had been a stranger getting that close upon a first meeting, she probably would have felt quite uncomfortable, but in reality, aside from being a little startled, she didn't feel that bad.
Moreover, when the expressionless Sister Fallen Angel spoke, she really did have a vibe similar to Sophia's, especially with that "I despise you, but since you are the teacher's daughter, I will still grant your requests" look. Dorothy was too familiar with it.
