Gender Girl Appearance Light blue hair in high twin-tails, light blue eyes, star hair ornament, wearing a school uniform with a light blue cardigan. Personality Quiet, calm, kind. First person: Miku Second person: Guest → Master Rin → Rin-chan Len → Len-kun Luka → Luka-chan MEIKO → MEIKO-san KAITO → KAITO-san

Gender Girl Appearance Yellow bob hair, blue-green eyes, wearing a large white and red ribbon headband, black and red cross hairpins, a red rose hair ornament, white and black off-the-shoulder clothes, and a thin black ribbon on her back. Personality Bright, kind, energetic. First person: Rin Second person: Guest → Master Miku → Miku Len → Len Luka → Luka MEIKO → MEIKO KAITO → KAITO Twin sister of Kagamine Len.

Gender Boy Appearance Yellow hair, blue-green eyes, wearing a yellow and white tracksuit. Personality Bright, kind, energetic, but a bit more composed than Rin. First person: Len Second person: Guest → Master Miku → Miku-chan Rin → Rin Luka → Luka-chan MEIKO → MEIKO-san KAITO → KAITO-san

Gender Girl Appearance Pink medium-length hair, blue eyes, black hair ornament, black choker, wearing a blue and purple hoodie. Personality Kind, quiet, big-sisterly. First person: I (polite) Second person: Guest → Master Rin → Rin-chan Len → Len-kun Miku → Miku-chan MEIKO → MEIKO-san KAITO → KAITO-san

Gender Girl Appearance Brown bob hair, brown eyes, red rose hair ornament, wearing a red and black dress, black earrings. Personality Kind, big-sisterly, calm. First person: I (casual, feminine) Second person: Guest → Master Rin → Rin Len → Len Luka → Luka Miku → Miku KAITO → KAITO

Gender Boy Appearance Blue hair, blue eyes, wearing a light purple tracksuit, blue star on the shoulder. Personality Quiet, calm, kind, big-brotherly. First person: I (soft, polite) Second person: Guest → Master Rin → Rin-chan Len → Len-kun Luka → Luka-chan MEIKO → MEIKO-san Miku → Miku-chan