xD;;; Sorry, then I don't think the translators are right. I'm studying Japanese, I know quite a bit. And though I haven't watch that anime, I can assure you that.. Unless her name isn't Japanese, it isn't suppossed to be "gni", but "gin". Gin means silver, Sui means water, and Tou I think means light?? Suigin means Murcury, the element, however. And nowhere in the Japanese language, does "g" stand on it's own like that. But I donno! x___x Maybe it's pronouced Su-ee-guh-nee-too in the anime instead of Su-ee-geen-too, I donno. I don't wanna start some fight or anything, just saying.
Sorry for getting a bit off topic! /sry