@Shotmess I'm not the translator, but I read and am caught up with the official Chinese raws in the Tencent Comics app. Her name(short) in Chinese is Aisha; full first name is Aishanasi(艾莎娜斯, you can listen to how it's pronounced by copy/pasting it in Google translator or something if you're curious). ML's name in Chinese is Lukalaien(sounds like Loo-kah-lai(like 'lie)-ehn; 卢卡莱恩). I don't know about Korean, but that's probably just due to those differences between languages the raws were in lol.
When I first read this series, I thought the names of their names were very unique even as non-Chinese(western name) and always been wondering what their official English names would be lol. I went to check Tappytoon, and their official English names turned out to be Elizabeth and Lucaren Winternight. Quite a difference, haha.