IN GREEK, Andromeda described as a sacrificed to a sea monster. For her mother Cassiopeia boasted that she is more beautiful than the Nerieds. Poseidon gives them a divine punishment and that is to give Andromeda to be a living sacrifice to the sea monster but she was saved by Persues, and eventually married her.
But what if, that's not what really happened?
What if there's something about Andromeda that they cannot tell?
That instead of Cassiopeia get punished, Andromeda did.