Petite Princess Yucie chronicles the journey of Yucie, a spirited girl from the countryside, who unexpectedly gains entry into the esteemed Princess Academy. Here, she delves into a curriculum encompassing magic, dance, etiquette, defense, art, and music alongside the noble daughters. Determined to gather the scattered 'fragments' of the Eternal Tiara, Yucie aspires to claim the revered title of the Platinum Princess, bestowed once every millennium. Initially rivals, Yucie and her fellow Princess candidates eventually forge deep bonds of friendship as they strive to mature emotionally and prove themselves deserving of the Tiara, all while navigating the challenges of courtly life. Unbeknownst to many, Yucie harbors a noble lineage, being the daughter of a retired hero who resides in seclusion in the countryside, adding layers of complexity to her character.