Elements in GF2 don't mean anything, it's just a different colour for skill animations meant to force dolls into specific teams and make you roll more by randomly adding penalties to some colours in endgame. There are no interesting interactions or some kind of unique properties to the "elements"

Anyway here is a maid cafe in taiwan, china oblast.
https://www.bilibili.com/video/BV1XUYCz5Ec2/