Dead-End Villainess Who Makes Medicine

“A year at most.” For the sake of revenge, I lived for over ten years wearing the mask of a villainess. I’ve completed all preparations for my final step and ready to go into exile, but my time is running out! ‘I can’t die unjustly like this.’ There was only one way to cure myself. Consuming a small amount of a rare flower found in the imperial palace every day. “Please propose to me, Your Highness.” “What will I gain by marrying the princess?” “I will place everything in Cassian under Your Highness’s control.” And so, I succeeded in a contract marriage with Crown Prince Julion, allowing me to cure my illness… However, wait, why are there so many sick people in the palace? As a phy...