Noel Otoshiro (音城　ノエル Otoshiro Noeru) is Seira Otoshiro's little sister. She was mentioned by Kī Saegusa in That Rocking Girl is the Dream☆Girl and made her actual debut in Lalala☆★Rival. It was revealed that in Episode 172, Noel had auditioned and was accepted into Dream Academy, following her sister's path in becoming an idol. She is Seira's little sister mentioned in the EP 51