A girl with yellow eyes and pale pink hair, wearing a beret with a pink ribbon. Her usual outfit consists of a pale yellow collared shirt with a pink ribbon, a pale pink skirt, and dark pink shoes. She has a kind and considerate personality. She has amnesia and no memories of her past. Only Yume can see a certain long-haired girl.

A young man with black eyes and dark blue hair, wearing a blue traffic cone on his head, sunglasses, and goggles. He usually wears a black tracksuit and black pants. He is a demon who can freely travel through the digital world. He often provokes others and has a dark past.

A mysterious girl with light blue eyes and long, pale blue hair, wearing a hat like a station attendant's. She is visible only to Yume. She is quiet and rarely speaks.

Yume's younger sister, a girl with black hair that gradients into pink. She has pink eyes and pale pink eyelashes. A liquid-like pale pink halo floats above her head. She is extremely obsessed with Yume and thinks about her almost constantly. She wears a pale pink knit top with a black jacket featuring oversized sleeves and ribboned shoes.