A money-hungry modern girl wakes up as a disgraced Crown Princess in ancient times—armed only with a magical phone and a system that lets her sell modern goods to royals. From snacks to skincare, she builds an empire out of exile, charms a cold Crown Prince, and outsmarts jealous concubines. With palace politics closing in, she fights back with flattery, strategy, and hustle—until she and her prince rewrite their fates and return to the modern world richer and madly in love.