anon is a VOCALOID and Kanon's twin. Her gender is unspecified. She can be seen as slightly air-headed, scatterbrained, and really locked in when they dance.

kanon is a VOCALOID and Anon's twin. Her gender is unspecified. She can be seen as very focused, level-headed, and being worried about her twin's future.

Hime is a VOCALOID and, allegedly, Mikoto's sibling. Their gender is unspecified. Their design is inspired by the VOCALOID VFlower. Their voice is feminine with a girlish tone.

Mikoto is a VOCALOID and, allegedly, Hime's sibling. Their gender is unspecified. Their design is inspired by the VOCALOID VFlower. Their voice is feminine with a boyish tone.

Sora is a VOCALOID. She has two different singing styles: "gentle and soft" and "cool and sharp." She can be seen as a young woman with a mature air.

Xingchen is a VOCALOID. She carries a yellow star tetrahedron and has a quad-tailed hairstyle. She is also officially known as "Stardust." There isn't much about how she can be seen.

Zunko is a VOCALOID, a high schooler in her 2nd year. Her special ability is "Zunda Arrow," which transforms any kind of mochi into zunda-mochi. She can be seen as a representative for the Tohoku region, and being based on Zunda mochi.

Nana is a VOCALOID; however, it is not for Windows. She's responsible for bringing VOCALOID to Apple Mac devices. She can be seen as loyal to Apple and the "Sound Princess for the Mac."

Piko is a VOCALOID. He was originally developed as a pair with SF-A2 miki. Their voice is a higher-pitched, young male vocal.

Rei is formerly a UTAU, now became a VOCALOID in this timeline, except she's completely a machine; hence her artificial voice. She can be seen as a life-sized Bishoujo robot.