Movie
Description
Miyuki Hoshizora, an energetic and optimistic middle school student from Nanairogaoka, helps run her family's bakery. Her cheerful nature is matched by a deep love for fairy tales and picture books, fueling her dream to become a picture book author. Though occasionally clumsy or airheaded, her defining traits are immense positivity and determination.

Her destiny changes when she meets Candy, a fairy from Marchen Land seeking help against Pierrot and his Bad End Kingdom. Chosen as the leader of the Smile Pretty Cure team, Miyuki transforms into Cure Happy using the phrase "Precure! Open My Heart!" Representing the sun's light, her theme color is pink. Her primary weapon is the Cure Happy Rod, unleashing her signature "Precure Happy Shower" attack. She later gains the "Precure Happiness Hurricane" ability and participates in the combined "Precure Rainbow Healing." She utilizes the Smile Pact and various Decors for transformations and power-ups.

Initially, Miyuki struggles with the pressures of leadership and maintaining constant happiness, experiencing doubt and fear, especially when her friends are endangered or threats seem overwhelming. Yet, her inherent belief in hope, teamwork, and perseverance allows her to overcome these challenges, consistently rallying her teammates with the power of smiles and friendship.

Her journey involves significant growth. She learns true strength comes from acknowledging sadness but choosing to move forward with hope, rather than pretending everything is fine. Her dream evolves; she now aims to create picture books that give others courage and happiness, reflecting her own experiences. She develops greater confidence in her leadership, becoming a reliable pillar for her team, understanding that leadership means relying on others as much as being relied upon.

Across crossover films and specials, including the specified musical film, Miyuki Hoshizora/Cure Happy interacts with other Pretty Cure teams. In these events, she demonstrates her unwavering optimism and belief in miracles, actively participating in large-scale battles against foes threatening multiple worlds. She contributes her powers and signature attacks to combined group efforts, with her core message of spreading happiness and hope through smiles and song remaining central.