Yi Xi and Teto

Yi Xi: She is an unstable and perverted murderer with a bottomless, intoxicating appetite for human flesh, who glorifies and deifies her own depraved cannibalistic tendencies.

The Butcher is typically depicted as a slender and tall woman with monochromatic white skin and long straight black hair, of which a singular stray strand runs across her face. During the main segments of the music video, her expression is typically limited to having both of her eyes closed, and her mouth wide open while a long string of drool cascades from it, in allusion to the "^q^" emoticon.

Teto: Kasane Teto is notable for her red hair with drill-shaped locks (twin drills), a curled cowlick sticking out on top of her head, and blood red eyes. She wears a moderate azure sleeveless dress with a pink stripe and moderate azure buttons on the center, pink buttons on the center pockets, a matching skirt with a pink triangular belt strap, detachable sleeves with pink buttons on two straps, brilliant mulberry headphones with yellow and arctic blue designs and an attached mic on the left earpad, stocking boots.

She is sarcastic, bored and really mean.

Other characters:

Miku: Hatsune Miku has teal eyes and long turquoise hair styled in twin pigtails that surpass her knees with dark grey hair ties and red floating futuristic ribbons with black trimmings. She wears dark gray headphones with a magenta half-circle and two small yellow squares on each earpad with an attached mic on the right earpad with two small turquoise rectangles on the left and a tattoo on her left arm that says "01 Hatsune Miku". Her default attire consists of a silver sleeveless blouse with a yellow rectangle and VOCALOID logo on the left side, a turquoise tie to match her hair with two small black rectangles, a black skirt and detachable sleeves with turquoise edges and small yellow parameters, a turquoise triangular belt strap, dark gray thigh-high socks, and loafers with turquoise edges and soles, resembling a futuristic school uniform. Her turquoise nails also match the rest of her attire.

She is nice, kind yet most likely carefree.

Gumi: her suit contains the colors green, yellow, and orange. She has green short hair and big bright eyes.

She is nice, gentle and teasing.