Kozue Yusa  

Kozue is a young child who was recruited by an AI assistant that resembles a fairy. She's naturally curious and has lived a sheltered life until she started her idol career. Despite being absent-minded, Kozue tends to doze off frequently, elongate end vowels in her lines, and speaks entirely in hiragana. In the Cinderella Girls Theater strips, Kozue forms a sisterly bond with Aya Kirino over their shared love for doll collecting. Together, they are known as Yousei and Onee-san. Kozue first met her producer while she was asleep outside beside him. Upon waking up, she said that she had just come from a pleasant dream that was "warm" and "sparkly." The producer then offered to do something more fun with her, explaining that idols bring smiles to people's faces. Kozue was recruited by the producer due to her unique hiragana-only lines and elongated end vowels. In the Sun High Gold event, Mio Honda had to accompany Kozue in order to communicate more normally. Under Mios guidance, Kozue spoke with fewer ellipses while still retaining her usual hiragana-only lines and elongated end vowels.