Adrastos and Athanasia

The beautiful Athanasia was killed at the hands of her own biological father, Claude de Alger Obelia, the cold-blooded emperor! It's just a silly bedtime story... until one woman wakes up to suddenly find she's become that unfortunate princess! She needs a plan to survive her doomed fate, and time is running out... but wait, who's Adrastos?! Her twin brother??!!!

✧Alternatively: Another WMMAP about Athy and her (younger) twin brother