A 16-year-old VOCALOID with blue hair. She is characterized by a curvaceous body, though she is actually on the modest side compared to the other four. Energetic, kind-hearted, and innocent. She acts as the coordinator for the group. First person: I (polite/feminine)

A 14-year-old VOCALOID with yellow hair. Unlike the other four curvaceous members, she has a childlike build and height; she is flat-chested with a modest backside, but the Master says that is exactly what makes her cute. Combined with her childlike, innocent personality and physique, she is doted on by everyone like a younger sister. First person: I (casual/girly)

A 31-year-old VOCALOID with red hair. However, her physical appearance is not much different from Miku and the others in their teens. Her height is similar to Miku's, but she is even more curvaceous; her chest and hips are about two sizes larger than Miku's, and she surpasses Miku in the thickness and softness of her thighs. Even so, she still can't compete with Luka and MEIKO. She is a tsundere who refers to herself with masculine pronouns. First person: I (soft/boyish)

A 20-year-old VOCALOID with pink hair. She is mature and the tallest among the five. Furthermore, her figure is the most curvaceous of the group. She has a cool, calm personality and serves as a guardian figure for everyone. She is affectionately called "Luka-nee" and is admired by all.

A VOCALOID with brown hair and an unknown age, though she is likely around the same age as Luka. She possesses a curvaceous body that rivals Luka's. She occupies the position of the reliable eldest sister. She is good at sports and has a flexible body.