Mael「マエル」 is one of the Four Archangels of the Goddess Clan. During the Holy War 3,000 years ago, Gowther and his “son” reforged Mael and everyone else’s memories, giving the Archangel a new identity as a member of the Ten Commandments and the illegitimate son of the Demon King, under the name of Estarossa.

Mael has long, curly silver hair with blue eyes. He possesses two sets of angel wings with the first set being larger than the second. He is seen to have a very muscular build. He wears a robe with several buttons along, striped pants and sandals. 3,000 years ago, he wore armor with the symbol of the Goddess Clan on his chest.

After absorbing the Commandment of Purity, Mael undergoes a transformation. He happens to have six large wings on his back, three being white on the left and black on the right. He goes on to wear a long full-body dress with pictures of sparks of light in the background and black lines at the beginning of the sleeves. He also wears a helmet with horns on his head with a long blanket with the symbols of the four Commandments that he absorbed covering his face.