Adresteia ( Greek : Ἀδρήστεια ) in Greek mythology was the son of Ares and Afrodit and is known to accompany his father in the war. He called the goddess of vengeance because he is usually depicted with Nemesis , sometimes even regarded as Adrestia Nemesis Nemesis has a nickname given Adrestia or Adrasteia . Adrestia is the sister of Eros , Anteros , Fobos , Deimos , and Harmonia .