Tearmoon Empire: Volume 9 (Light Novel)

Crown Prince Sion is prophesied to be fatally poisoned by his younger brother, Echard. Donning a precious keepsake dress made by her mother, ex-selfish-princess Mia throws open the doors to the ballroom, prepared to confront this swirling conspiracy.
After considerable (by Mia standards) thought, she devises a brilliant (again, by Mia standards) scheme. Time to keep Sion dancing so he doesn't have a chance to drink anything! Unsurprisingly, her plan falls flat almost immediately, as the my...