Midori Hoshi (緑 星) is a second-year student at Miyamasuzaka Girls Academy. She is a member of the street singer unit 'Oyasumi Dārin'. She is the creator of the noodle shop sekai with Hatsune Miku and Kasane Teto. She is part of her school's art club and she often brags about her art. Her dad owns a Noodle shop and they often make food together. She had a older brother who killed himself which was the reason for her and her ex best friend Shi's friendship to end.