 The series focuses on four primary characters – Athena, Persephone, Aphrodite, and Artemis — as a diverse group of loyal friends.Athena is noted for her intelligence, Persephone is mysterious and kind, Artemis is bold and strong, and Aphrodite is "effortlessly beautiful".Holub writes about Athena and Artemis, Williams about Persephone and Aphrodite.