Prince Flower, referred to as Prince Percy in the English dub, serves as the sole heir to Duke Fastener, sovereign of Hookland. When the duke falls ill and embarks on a space voyage, the prince is tasked with aiding Button Nose during her interim regency, blending his bookish intellect and reserved nature to help navigate governance challenges.

His pursuits include frequent culinary misadventures in bread-baking, marked by persistent failures that underscore his earnest, lighthearted spirit. Tensions define his encounters with Clip, a roguish cleaner, as their clashing personalities oscillate between friction and uneasy teamwork—particularly when Clip’s antics entangle him and Button Nose in unintended crises.

Amidst Hookland’s political machinations, Countess Mrs. Bracelet conspires to oust Button Nose by orchestrating his marriage to her daughter Pierce. These schemes repeatedly unravel through external disruptions or chance mishaps. Though his rapport with Pierce remains frosty due to her hostile demeanor, her unpredictable choices in the series’ climax introduce ambiguity into their relationship. His background and development remain anchored solely to the events depicted within the series’ 26-episode arc.