Theia is really carefree and doesn't like doing more than what's necessary, but takes her most important tasks seriously. She doesn't have a dark side, unlike her beloved moon, and is just as she appears. She's also rather romantic for someone who can't experience love and sometimes likes to brighten up the night moon for lovely couples. She unexpectedly likes to tell jokes too and starts laughing at them before she can even open her mouth.

Theia has been around just as long as the moon itself. Her life has been pretty monotone from the beginning but luckily for her deities feel the flow of times differently from humans, those who made her life a bit more interesting. Ever since their appareance of Earth, she likes to watch them evolve and is fascinated by their extraordinary range of emotions.