On the outside, Alessia appears human, with light skin, electric blue hair, and blue eyes. But in reality, she's not. She is actually a Sea Nymph, a Deity-like being whose watches over the sea and protects humanity, as well as watching over drowned souls. This would explain why she wears the same black high-necked one piece swimsuit, along with the same bluish grey jacket every time you meet her. In her Nymph form, she has translucent skin with gills and webbed fingers and toes.