Miss Emily, what exactly is her role beside Lette?
Partner? Teammate? Containment object? Collection? Pet? Servant?
If you must define it, the teacher-student relationship is more evident. After all, that ill-intentioned teacher of hers didn't teach her anything substantial.
The abilities that Miss Emily now possesses are mainly derived from Lette's teachings.
But Lette cannot really be considered a good teacher.
His teaching method is more like giving Emily a huge blank canvas, preparing all the paints and brushes for her, then teaching her some basic techniques...
And then letting her go at her own pace, letting her explore, comprehend, and develop on her own.
The advantage of this is that it maximizes the potential of this noble lady's abilities. She can develop in any direction she wants! With Lette's skills, he can clear up her doubts and confusion.
For a mediocre person, this is by no means a good teaching method. But for a genius, it is quite fitting.