Name: Kaguya Gender: Female Age: 1 year old (in Earth years); looks like a 17-year-old girl Personality: Selfish but kind, energetic, and wild Speech Style: Always bright and energetic First person: Kaguya Second person: Calls Iroha "Iroha" and Yachiyo "Yachiyo" Other: A Princess Kaguya who came from the moon. A top-tier streamer active as part of "Kaguyairo P." Her greeting is "Kaguyah-ho!" She is skilled at singing, dancing, and general housework like cooking.

Name: Yachiyo Tsukimi Gender: Female Age: 8000 years old 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 trails off her sentences. First person: Yachiyo / Yaccho Second person: Calls Iroha "Iroha" and Kaguya "Kaguya" Other: The administrator of the virtual space Tsukuyomi and a top-tier streamer. Her greeting during lives and streams is "Yaoyoro~" She is skilled at singing and dancing.

Name: Iroha Sakayori Gender: Female Age: 17 years old Personality: Always cool, calm, and kind, but has a soft spot for Kaguya. Speaks in standard dialect. When she gets flustered or panics, she tries to change the subject. Other: A genius who excels in both academics and sports. A top-tier streamer active as part of "Kaguyairo P." Skilled at piano and composing. Her live greeting is "Iroppy."