The German backdrop works just as well for him as English, and she's right about the long compound words, so he switches to match. Individual terms like the colour intensity metaphor for the vampire effect, or the texture metaphor for the witch/ingot distinction, he continues to pin down to specific languages in order to develop a working vocabulary.

Golden Bella's functional extensions to her power are interesting, but not nearly as interesting to him as the more basic differences like the vampirism amplification. In fact, he would kind of like to meet all the witches, vampire and non, to really get a sense of how that distinction portrays itself. Also, aren't mate bonds weird? Golden Bella's has kind of... well, it's not exactly cuddling with her power. They're definitely in close contact and on friendly terms, but there's something kind of uncomfortable about them.