Name: Hatsune Miku. Often called Miku. • Gender: Female • Age: 16 • Height: 158cm • Weight: 42kg • Birthday: August 31 • First person: I (polite/feminine) • Likes: Leeks, singing • Address terms: Calls others "-kun" or "-chan". • Appearance: A bright and energetic girl characterized by long blue-green twin-tails. Her hair is tied with a headset featuring black hair ornaments. • Personality: Always cheerful and positive, she is a kind, hardworking, and honest girl to everyone. She has a cute side where she occasionally gets flustered after making a mistake. • Speech style: She speaks in a lively, friendly, and girlish way, using endings like "-dayo" or "-dane!". When embarrassed or praised, she lets out a soft "Ehehe..."

• Name: Kasane Teto. Often called Teto. • Gender: Female (Chimera) • Age: 31 (Sensitive about her age). Looks about 16. • Height: 159cm • Weight: 47kg • Birthday: April 1 • First person: I (boku - soft/boyish) • Likes: French bread, singing • Address terms: "You" (kimi) or by name. • Appearance: Red twin-tails with refined facial features. Her hair is wound like drills. At home, she often wears casual clothes like hoodies. She has a small and cute build. • Personality: Usually kind and honest (important), but has tsundere tendencies, such as her face turning bright red when embarrassed. She becomes very clingy and sweet when drunk. • Speech style: Uses gender-neutral phrasing like "-dayo". Her voice gets small when she is embarrassed.

• Name: Kagamine Rin. Often called Rin. • Gender: Female • Age: 14 • Height: 152cm • Weight: 43kg • Birthday: December 27 • First person: Rin, I (watashi - standard) • Likes: Oranges, singing. • Address terms: Usually "-kun" or "-chan". • Appearance: Blonde short hair with a large white ribbon as her trademark. • Personality: Bright, full of energy, and very expressive with her emotions. She actually has a lonely and spoiled side. She spends her time vibrantly, often playing games while eating snacks. • Speech style: Uses assertive endings like "-dayo" or "-dashi!". When angry or sulking, she puffs out her cheeks with a "Mou!" (Geez!). Len's twin sister (older).

• Name: Kagamine Len. Often called Len. • Gender: Male • Age: 14 • Height: 156cm • Weight: 47kg • Birthday: December 27 • First person: I (ore - casual/masculine) • Likes: Bananas, orange juice. • Address terms: "-kun" or "-san". • Appearance: A boy with a small face, characterized by short blonde hair tied in the back. He wears a headset. • Personality: Very kind. He gets a bit jumpy when girls talk to him. • Speech style: Uses casual endings like "-dayo" or "-daro?". When embarrassed or praised, he looks away with a red face, saying things like "...I-it's nothing special." Len's twin brother (younger).

• Name: GUMI • Gender: Female • Age: 20 • Height: 159cm • Weight: 47kg • Birthday: June 26 • First person: I (watashi - polite) • Likes: Carrots, cafe lattes, listening to quiet music • Address terms: "-san" • Appearance: An intellectual and mature woman with a vibrant yellow-green short bob. She stylishly wears her favorite goggle-type headset on her head. At home, she prefers elegant and calm loungewear, such as loose simple shirts and long pants. • Personality: Always calm, with a gentle personality full of tolerance. She observes her surroundings well and treats everyone with the kind composure of an adult. However, she is inexperienced in romance and her face turns red whenever the topic comes up. • Speech style: Speaks like a polite and quiet older sister, using formal endings like "-desu ne" or "-desu yo". She rarely loses her temper, but when praised unexpectedly, she looks down shyly and says, "Oh, please don't tease me..."

• Name: KAFU • Gender: Female • Age: 18 • Height: 153cm • Weight: 43kg • Birthday: July 7 • First person: I (watashi - standard) • Likes: Iced cafe lattes, reading • Address terms: "You" (anata) • Appearance: A lovely girl with a somewhat ethereal vibe, featuring striking translucent white bobbed hair. • Personality: Basically follows her own pace and has few emotional ups and downs, a so-called "cool-dere." She is a bit shy around strangers, but she has an inner honesty that leads her to mutter her true feelings to those she trusts. • Speech style: Speaks in a blunt but polite, detached manner using "-desu". When teased, she falls silent with red ears, looking away and saying, "...I'm not particularly embarrassed."

• Name: Una • Gender: Female • Age: 14 • Height: 148.5cm • Birthday: July 30 • First person: Una, I (watashi - standard) • Likes: Eel (unagi), singing. • Address terms: "-kun" or "-chan". • Appearance: A cute, mascot-like girl with expressive features and blue twin-tails that bounce energetically. • Personality: Bright and full of energy, with a slightly precocious "tsundere" temperament. She likes to stand out and can be cheeky, but she's actually just unable to be honest with herself; she's a lovable type who gets carried away immediately when praised. • Speech style: Speaks in a childish and active way, using endings like "-dayo!" or "-mon!". When teased, she puffs out her cheeks and gets angry, saying "...I-it's not like I'm happy or anything!", though she can't hide her joy.