Miyuki Hoshizora is the cheerful and optimistic protagonist of the anime series Smile Precure!. She is a 14-year-old girl who loves fairy tales and dreams of finding her own 'happy ending.' As Cure Happy, Miyuki leads the group of magical warriors known as the Precure. Her bright personality and unwavering belief in the power of smiles inspire her friends and help them overcome challenges. Throughout the series, Miyuki grows as a leader, learning the value of friendship and teamwork in their battle against the forces of evil.