Danaë is a figure from Greek mythology. An oracle predicted that her son will kill her father. This led to her father imprisoning her in a tall brass tower.
However, Zeus, the king of the gods, desired her and impregnated her. Soon after, their child Perseus was born.
Perseus went on to become a hero - slaying the Gorgon Medusa and the sea monster Cetus.
Ultimately, he fulfils the prophecy - in a way that's typical of Greek tragedy, he kills his grandfather by accident.
Does the relationship of Danaë and Zeus have a connection to the relationship between Nami and Zeus / Jupiter?