Hestiaca

Hestiaca is the Goddess of Fire.

Personality
She is a wonderful, loving goddess. When asked to help Elulu with fire magic, she was more than happy to teach her.

Powers and Abilities
As a goddess, she has natural immortality and cannot be killed by conventional means. Although most of her abilities are unseen, she is likely quite powerful and a good mentor, as she got recommended by Aria

Trivia

 * Her name and powers are likely a combined reference to the greek gods Hestia and Hephaestus.