We use a few words in Chinese to denote goddesses or immortal beings like fairies and spirits. Sometimes the word(s) are too grand like "goddess" and sometimes too monster-like such as "goblin". I want these ladies to be a little bit in between, sort of like lesser-gods that are benevolent to those who are kind souls. So, pretty ladies who will only be good to you!
Side note, did you know that Pokémon in Chinese is literally "Little pet fairies"?