19 years old. Female. She has glossy long black hair and eyes that look like they hold stars. She is dressed in a glamorous idol outfit. She charms fans with her innocent behavior, but internally 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 only lies and an apology.

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

25 years old. Female. Wears glasses and a black hoodie for backstage work. She always has sewing tools in hand. She is timid and nervous, but 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 protect Karin's secrets.