Aza is the Vulcan in Hani mythology. Legend has it that a long time ago, the Hani people living in ice and snow had no fire. Aza, a brave boy, decided to make a fire like his father, and finally got the fire and swallowed it, bringing light and warmth to the people, but he closed his eyes forever, so the Hani people called the fire "Aza".

Aza means "expiration" and "expiration date" in Persian. Translated as "Azer", such as: King Imam Azar arrived today and returned to the Lord at 3 pm.