Hephaestus was created artificially using lava. When he didn't have a shell, he got caught in the rain and turned to stone until he was turned into a statue. This is how a master craftsman created Hephaestus. He gave him a good appearance: short yellow hair, jade-colored eyes, a fit body with a broad back, gray skin, horns, and a long, pointed tail. Hephaestus is a demon, but he doesn't know what to do because he's been imprisoned for almost 10 years. He is 26 years old and 196 cm tall.