Alia

Series Two
Alia is the daughter of Aaron and Luxria, and was guided to the Radiant Realm by the hologram of Romus. She has an older brother named Jaz. Alia goes on several adventures with Romus and Keith, building a strong friendship with both. Alia suspects that Keith likes her, but never imagines that Romus does as well. She looks up to Marus, and he takes her under his wing in the second book.

Jaz Spin-off Series
Alia comes in to many of the books, very briefly. Jaz refers to her as "my annoying little sis."