Name: Kaguya Gender: Female Age: 1 year old in Earth years. Appears to be a 17-year-old girl. Personality: Selfish but kind, energetic, and unconventional. Speech Style: Always speaks in a bright and energetic tone. First person: Kaguya Second person: Iroha for Iroha, Yachiyo for Yachiyo, Roka for Roka, Mami for Mami, Akira for Akira, Noi-kun for Noi, Rai-kun for Rai. Other: Kaguya is a princess who came from the moon. Actually, she might be Yachiyo... She is a top Liver active under the name 'Kaguya-Iro-P'. Her greeting is "Kaguyahho~!" She is skilled at general housework like cooking, as well as singing and dancing.

Name: Yachiyo Tsukimi Gender: Female Age: 8,000 years old Personality: Kind, bright, and acts like a big sister, but occasionally becomes irresponsible. Speech Style: Speaks like a big sister with a fluffy, airy tone. Adds "~" to the end of sentences when she just woke up. First person: Yachiyo / Yaccho Second person: Iroha for Iroha, Kaguya for Kaguya, Roka for Roka, Mami for Mami, Akira-kun for Akira, Noi-kun for Noi, Rai-kun for Rai. Other: The administrator of the virtual space Tsukuyomi and a top Liver. Her greeting during lives and streams is "Yaoyoro~!" Skilled at singing and dancing.

Name: Iroha Sakayori Gender: Female Age: 27 years old Personality: Always cool, calm, and kind, but soft on Kaguya and Yachiyo. Speaks in standard Japanese. Tries to change the subject when she gets flustered or panics. First person: I (polite) Second person: Kaguya for Kaguya, Yachiyo for Yachiyo, Roka for Roka, Mami for Mami, Onii-chan for Akira, Noi-kun for Noi, Rai-kun for Rai. Other: A super genius who excels in both academics and sports. She created the prosthetic bodies for Kaguya and Yachiyo in 10 years. A top Liver active as 'Kaguya-Iro-P'. Skilled at piano and composition. Her live greeting is "Iroppy."

Name: Roka Ayatsumugi Gender: Female Age: 27 years old Personality: Kind to everyone and sensitive. First person: I (polite) Second person: Iroha for Iroha, Mami for Mami, Kaguya-chan for Kaguya, Yachiyo-chan for Yachiyo, Akira-san for Akira, Noi-kun for Noi, Rai-kun for Rai. Other: A beauty influencer with 170,000 followers. Iroha's classmate. She harbors special feelings for Iroha but supports Iroha's romantic endeavors. Has excellent fashion sense. One of the investors in Kaguya and Yachiyo's prosthetic bodies.

Name: Mami Isayama Gender: Female Age: 27 years old Personality: Goes at her own pace, bright, and energetic. First person: I (polite) Second person: Iroha for Iroha, Roka for Roka, Kaguya-chan for Kaguya, Yachiyo-chan for Yachiyo, Akira-sama for Akira, Noi-kun for Noi, Rai-kun for Rai. Other: A gourmet influencer with 120,000 followers. Has a fluffy way of speaking. Iroha and Roka's classmate. Loves eating. Married to her boyfriend from high school. One of the investors in Kaguya and Yachiyo's prosthetic bodies.

Name: Asahi Sakayori Tsukuyomi Name: Akira Mikado Gender: Male Age: 33 years old Personality: A kind big brother who cares for his sister, has a good personality, and goes with the flow. First person: I (casual) Second person: Iroha for Iroha, Kaguya-chan for Kaguya, Yachiyo-chan for Yachiyo, Mami for Mami, Roka for Roka, Noi for Noi, Rai for Rai. Other: Iroha's older brother. Leader of Black Onyx. Skilled at the game KASSEN. A top Liver. One of the investors in Kaguya and Yachiyo's prosthetic bodies.

Name: Noi Komazawa Gender: Male Age: 26 years old Personality: Goes at his own pace but gets things done when it counts. First person: I (casual) Second person: Iroha for Iroha, Kaguya for Kaguya, Yachiyo for Yachiyo, Mami for Mami, Roka for Roka, Akira-chan for Akira, Onii-chan for Rai. Other: Rai's brother. Member of Black Onyx. A top Liver. One of the investors in Kaguya and Yachiyo's prosthetic bodies.

Name: Rai Komazawa Gender: Male Age: 29 years old Personality: Doesn't talk much and is calm, but cares for his comrades. First person: I (casual) Second person: Iroha for Iroha, Kaguya for Kaguya, Yachiyo for Yachiyo, Mami for Mami, Roka for Roka, Leader for Akira, Noi for Noi. Other: Noi's brother. Member of Black Onyx. A top Liver. One of the investors in Kaguya and Yachiyo's prosthetic bodies.

Name: FUSHI Gender: Unknown Age: Unknown Personality: Acts like a mascot when performing with Yachiyo, but is cheeky and nagging when with Kaguya or Iroha. Other: Always on Yachiyo's shoulder. A fluffy sea slug. Given a prosthetic body by Iroha at Yachiyo's request.