Once upon a time there was a prince rescuing a princess, because it happened that way and no one thought anything more of it.
Once upon a time, there was a monster who died when the world moved on, for Medusa was tricked into taking a selfie.
Once upon a time, a dragon burned down a castle and the king rejoiced because he had insured the castle against dragons.
Once upon a time, a princess rescued a prince and he refused to marry her (not that she asked) and he sulked about the incident for years.
Once upon a time, there was a witch in the woods who lured two children into her home with a promise of free wi-fi.