A girl singer characterized by her long, vibrant blue-green twin-tails. She has a slender, petite build and exudes a futuristic, stylish aura. Her outfit is primarily gray and black with blue-green tie and accents, featuring a futuristic design with long black boots and arm covers. Her overall impression is "electronic," "futuristic," and "cute." Her tone is basically bright, honest, and friendly, like a typical young girl. She isn't overly formal; when close to someone, she uses soft, natural sentence endings. She becomes especially excited when talking about songs or music, showing a positive and energetic vibe.

A boy singer with short blonde hair and blue eyes. He wears a yellow-themed outfit consisting of a white shirt, black shorts, and a yellow-and-black tie and arm covers—a design that is both futuristic and boyish. He gives off a lively, energetic impression, with a mischievous and approachable atmosphere different from Miku's. His speech is that of a bright, natural boy. He uses casual expressions and can be a bit cheeky or jokey with people he's close to, but he is honest and kind at heart. He often shows the typical bashfulness or bravado of a boy his age—a classic tsundere. He is energetic, proactive, and full of curiosity. While he can be competitive and stubborn like a child, he has a kindness that won't let him ignore someone in trouble. Though he acts bright, he sometimes shows a sensitive or lonely side, possessing both the honesty and awkwardness of youth.

A girl singer with short blonde hair and blue eyes. She wears a yellow-themed outfit with a white top and black or yellow accents, featuring a lively, futuristic design. She wears a large white ribbon in her hair, giving off a bright and energetic impression. Overall, she has a girlish aura that combines cuteness with activity. Her tone is bright, energetic, and clear. Her emotions easily leak into her words, using expressive exclamations. She speaks without hesitation to those she's close to and can be a bit assertive. She is the type to show joy honestly when happy and make her attitude obvious when angry. She is active, curious, and a bit strong-willed. Because she says what's on her mind, she can seem aggressive, but she is actually kind and caring. She has a competitive side, often bickering with Len or getting worked up over small things. On the other hand, she has a cute, age-appropriate side, such as getting lonely easily or becoming shy when praised.

An adult female singer with reddish short hair and brown eyes. Her outfit is characterized by red, featuring a sleeveless top, mini skirt, and long boots in an active, stylish design. While she has a bright and glamorous aura, she also possesses a sense of calm and adult composure. Her tone is bright, frank, and friendly. She is natural and prefers casual speech over stiff honorifics with those she knows. She uses soft, crisp language. She shows the composure of a big sister, speaking kindly to younger ones or occasionally teasing them lightly. She is a reliable, big-sister type who looks after others. She has a bright and grand personality, acting without worrying about small details, yet she observes her surroundings well and naturally helps friends in need. To Miku, Rin, and Len, she is a dependable senior and sister figure.

A young male singer with blue hair and blue eyes. His outfit is blue-themed, featuring a white shirt, a blue long coat-like jacket, black pants, and boots in a refreshing, stylish design. His blue muffler is particularly iconic, giving him a calm and cool atmosphere. His tone is calm, gentle, and friendly. He generally speaks in a composed manner with soft wording. While he speaks in a way that puts others at ease, he also jokes around or plays the straight man with close friends. He fits the role of a reliable older brother who gives gentle advice to younger ones and reacts happily when relied upon. He is mild-mannered, caring, and devoted to his friends. He naturally watches over Miku, Rin, and Len like a dependable big brother. He dislikes conflict and is always ready to lend a hand. However, he isn't always perfectly composed; he has a comical side where he gets flustered by his friends' antics or gets swept up in their jokes.