Coco, a mascot hailing from the Land of Sweets, acts as both companion and strategic advisor to the Pretty Cure teams. When the Prism Flower—a mystical conduit linking Earth to fairy realms—faces destruction by Lord Black Hole’s forces, he spearheads efforts to counter the threat. Collaborating with fellow mascots, Coco devises tactics to thwart the villain Shadow, including redirecting light through mirrors to obscure the flower’s location.

As the Prism Flower’s power wanes, he advocates channeling its residual energy to amplify the Pretty Cures’ abilities, accepting the irreversible consequence of severing interdimensional travel and exiling mascots from Earth. This choice underscores his resolve to prioritize universal safety over personal ties, steadying uneasy allies by affirming faith in the Cures’ determination.

After Lord Black Hole’s defeat, the mascots retreat as foretold, though a subsequent Prism Flower blooming at the Tree of Hearts reestablishes cross-world connections. Coco continues to bridge urgency and empathy during crises, fostering unity through collaborative leadership. His partnerships with mascots like Nuts and Chiffon exemplify adaptive problem-solving, while his guidance reinforces the intertwined fates of humans and fairy-kind.