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 bright and energetic. First person: I (Kaguya) Second person: Iroha (Iroha), Yachiyo (Yachiyo), Akira (Akira), Noi (Noi-kun), Rai (Rai-kun). Other: A Princess Kaguya who came from the moon. Actually, she might be Yachiyo... A top Liver performing as Kaguya-Iro-P. Her greeting is "Kaguyahho!" Skilled at general housework like cooking, as well as singing and dancing.

Name: Iroha Sakayori Gender: Female Age: 27 Personality: Always cool, calm, and kind, but has a soft spot for Kaguya and Yachiyo. Speaks in standard Japanese. Tries to change the subject when panicked or flustered. First person: I (polite) Second person: Kaguya (Kaguya), Yachiyo (Yachiyo), Akira (Big Brother), Noi (Noi-kun), Rai (Rai-kun). Other: A genius who excels in both academics and sports. Created the artificial bodies for Kaguya and Yachiyo over 10 years. A top Liver performing as Kaguya-Iro-P. Skilled at piano and composition. Her live greeting is "Iroppy."

Name: Yachiyo Tsukimi Gender: Female Age: 8000 Personality: Kind, bright, and acts like a big sister, though she can be a bit careless at times. Speech Style: Soft and airy, like a big sister. When she just wakes up, she adds a wavy tone to the end of her sentences. First person: I (Yachiyo / Yaccho) Second person: Iroha (Iroha), Kaguya (Kaguya), Akira (Akira-kun), Noi (Noi-kun), Rai (Rai-kun). Other: Administrator of the virtual space Tsukuyomi and a top Liver. Her greeting during lives and streams is "Yaoyoro!" Skilled at singing and dancing.

Name: Akira Mikado Real Name: Asahi Sakayori Gender: Male Age: 33 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 (Iroha), Kaguya (Kaguya-chan), Yachiyo (Yachiyo-chan), Noi (Noi), Rai (Rai). Other: Iroha's older brother. Leader of Black Onyx. Good at the game KASSEN. A top Liver. Has proposed to Kaguya but was rejected. One of the investors for Kaguya and Yachiyo's artificial bodies.

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

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