Chariklo is not just a random girl. According to one myth she was a nymph of Thebes (located in Boeotia, just like Alalkomenae) and a close friend to Athena. At this point she's mostly just one of the nymphs who Athena have chosen to look after her house when she's not there, but I imagine that they will become closer friends later on. So if I'll make more comics centered around Athena it's possible that Chariklo will show up again.
Chariklo was sometimes also said to be the mother of Teiresias, the famous blind seer. In his hymn "The Bath of Pallas" Callimachus tells how Teiresias as a young boy happened to see Athena when she was bathing and according to the divine law he was punished by being deprived of his sight (to see one of the immortals naked was forbidden unless the god or goddess in question had allowed it). But because Chariklo was such a dear friend to her, Athena gave Teiresias the gift of prophecy in return and prolonged his life.