Hephaestus (ヘファイストス) is the head of the Hephaestus Familia.
Hephaestus has a crimson eye and red hair reaching to the waist. She has a rather sharp face and slender body with an eyepatch over her right eye. Hephaestus has a complex about her right eye and is hated because of this. Her Familia members were also afraid of her eye with Hestia being the only one who showed no sign of fear or hate.
Hephaestus shows a strict and hardworking nature compared to her friend, Hestia, who was known as the lazy goddess.
Master Smith: As a Goddess of Smithing, Hephaestus is a master at it. She was able to smith the Hestia Knife, a living weapon with Hestia's falna, even without her arcanum.
- Hephaestus is named after the Greek smithing God.
- Hephaestus has a deformity under her eye patch while her real world Greek counterpart was crippled, had a smashed nose, and had a shoulder higher than the other.
- The defect is said to be very horrible to look at for female Hephaestus that everyone turns and runs away in horror.Gods and Humans alike.
- The reason why Hephaestus and Hestia have such a good relationship is because she is the only one not to run or scream at her defect.