"...do you think she's serious about defecting?"
"It's kind of odd, isn't it?"
Normally, this is where one would laugh. However, it seemed to me that her feelings were sincere. If there was one thing that had helped me survive in this world, then insight was the thing I could brag about. As imperfect as it may have been, my ability to handle the affairs of the El-Melloi family from my time in primary school was founded upon my ability to see to the heart of a person.
Probably because I had such a terrible personality.
Because I couldn't very well be vocal about how much I enjoyed watching people suffer, my ability to ascertain what and how people were thinking at a psychological level became rather refined. Skill comes from passion. Being that most magi are far too straightforward in their desires, there was no shortage of live cases for me to practice on.
Case Files II, Chapter 2, Part 3