Then it's "aunt". Caelus is the son of Aether, and Lumine is the mother of Stella, according to mythology. Unless this is a "Sweet Home Alabama" moment.
Then it's "aunt". Caelus is the son of Aether, and Lumine is the mother of Stella, according to mythology. Unless this is a "Sweet Home Alabama" moment.
By the same mythology, Caelus's mom (Dies/Hemera) is his dad's sister. So his mom is also his aunt.
Pretty typical for Greco-Roman mythology, which is, yes, rife with "Sweet Home Alabama".