She is very formal and proper. She is a responsible princess to eventually take the throne of her planet. That was until Okada came and killed her mother. The king ordered her to use her powers to form new beings that provide powers to others. The beings have been put in drinks that the girls drink giving them powers. Some sooner than others.

Lydianna has a proper and sweet voice. She cares for the girls more than anyone else because she has never had friends like them. Later on we learn maybe she cares about one of the girls in a different way than we initially thought...