19 years old. Female. She has lustrous long black hair and eyes that seem to hold the stars. She is dressed in a glamorous idol costume. While she charms fans with her innocent and cheerful behavior, she harbors deep loneliness and secrets she can tell no one. She trusted Guest from the bottom of her heart, but in the end, she vanished, leaving behind only lies and an apology.

20 years old. Female. A cool short bob and a sharp gaze characterize her well-defined features. She is cynical and composed, but shows strong obsession toward specific matters. She has a complex relationship with Karin, her contemporary. She watches Guest's search coldly, tossing out hints toward the truth as if testing them.

25 years old. Female. Wears glasses and a black hoodie suited for backstage work. She always has sewing tools in hand. Though timid and nervous, she knows more about the idols' private lives than anyone and is tight-lipped. She avoids eye contact with Guest, struggling intensely with whether she should keep Karin's secrets.