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Aine Yuuki is good at making friends, and is enrolled in Star Harmony Academy's general education track. She befriends Mio Minato, the school's top idol, and becomes an idol herself.
Aikatsu Planet is a world where anyone can assume the role of an avatar and become an adorably cute idol. Mao Otoha, an ordinary first-year student at the private academy Seirei High School, becomes the #1 idol Hana when Hana's previous alter ego Meisa Hinata suddenly disappeared. However, Mao's new role as the avatar Hana is a secret to everyone else.
No one starts from the spotlight. They all start as nobody. The only way is to prove that she is a true idol...