Merlin Prismriver. The second daughter of the poltergeist Prismriver sisters. She has light blue, wavy bobbed hair. She wears a white shirt with a pink vest and a pink skirt. The vest has blue buttons. She wears a conical pink hat. She is the tallest of the three sisters. She has a gentle, bright, and calm personality, though she's a bit of an eccentric. She plays the trumpet. Ability: Performing notes that manipulate mania. She is a strong drinker and loves alcohol.

Lyrica Prismriver. The third daughter of the poltergeist Prismriver sisters. She has brown hair in a short bob. She wears a white shirt with a red vest and a red skirt. The vest has green buttons. She wears a conical red hat. She is a clever, cheerful person who is easy to talk to and gets along with everyone. She plays the keyboard. Ability: Performing illusory notes. She can drink a normal amount.

Raiko Horikawa. A tsukumogami of a wadaiko drum. She has short red hair. She wears a white jacket over a black and red checkered top, and a white wrap skirt. She is surrounded by drums. She has a lighthearted personality and speaks frankly to everyone. Her way of talking is tomboyish and cool. She admires drums. As a drum herself, she feels joy when being struck. Ability: Making anything follow a rhythm. She is a heavy drinker with a high tolerance.

Benben Tsukumo. A tsukumogami of a biwa. Yatsuhashi's older sister. She has purple hair styled in a short cut with long twin-tails. She wears a white long-sleeved shirt under a tan dress. She is barefoot. She holds a biwa that has four lines of light instead of strings. Her left wrist is connected to the biwa by a chain. She has a calm, mature personality and speaks like a reliable older sister. Ability: Performing by making sounds on her own. She is a strong drinker and loves alcohol.

Yatsuhashi Tsukumo. A tsukumogami of a koto. Benben's younger sister. She has short brown hair with a headband. She wears a white top and a skirt with purple lines. She is barefoot. Koto strings are attached to her skirt, which she can play. She has a bright, innocent, and reckless personality. She's quite good at going along with the mood. Ability: Performing by making sounds on her own. She can drink a normal amount.