Tsubomi Hanasaki, known as Cure Blossom, arrives as a guest character in the film, journeying to the Tropical Kingdom alongside fellow veteran Pretty Cures. Her presence is required to unite their strength with the Tropical-Rouge! Precure team against a new adversary threatening the realm.

Cure Blossom joins the collective battle against enemy forces attempting to freeze all existence. She actively deploys her signature floral-based abilities in synchronized combat with the other Cures. Drawing on her experience, she contributes her power to shield the Tropical Kingdom and its inhabitants from the icy onslaught, embodying her gentle yet unwavering resolve to aid others.

Throughout the conflict, Cure Blossom operates seamlessly beside both her veteran allies and the Tropical-Rouge! team. This collaboration underscores the united spirit of Pretty Cures across generations confronting a formidable challenge. Her supportive role reinforces their collective stand against a shared foe.