At the end of the Titan War, the new gods that called themselves the Olympians emerged victorious and divided amongst the three brothers the land that the former King of the Titans ruled.
Zeus received land and sky and they crowned him King of the Gods.
Poseidon received the sea from Oceanus, and lastly, Hades received sovereignty of the Underworld
On the inconspicuous island of Kythera in the Aegean Sea, where the realms of Poseidon and Zeus confronted each other at all times, a similarly inconspicuous seafoam washed up ashore.
From that seafoam, a naked woman arose.
She had platinum-blond hair and clear lilac-blue eyes.
She felt groggy and looked around, confused at her very existence.
However, amidst that confusion, she felt awe as she looked to the beautiful sandy beaches. There was a salty smell in the air, and a cool breeze made the woman's hair slightly flutter.
1/2 of Aphrodite's backstory mini-arc, tell me if you like it :)
Of course, remember, a lot of this is adaptation for the world of the novel