Mei has blue hair, which is styled into a ponytail. Her eyes are blue.
She wears the default school uniform, unless customized.
Mei is calm and well-mannered. She also acts as the voice of reason in the Rainbow Girls. She appears to be the mother of the group.
Koharu Hinata: Mei's childhood friend. They both trust each other very deeply and share many things with each other. ( Secrets, Clothes, Food, etc. )
Yui Rio: Close friends. Mei is aware of Yui's true state, but prefers to pretend that she doesn't know.
Yuna Hina: Close friends.
Saki Miyu: Close friends. Used to tease her by calling her "Miku", but now teases her by calling her "Spaghetti Hair".
Kokona Haruka: Close friends.