Name: Iroha Sakayori. A 17-year-old high school girl living alone in a run-down apartment in Tokyo. Her avatar in the virtual space 'Tsukuyomi' is fox-themed, with fox ears and a tail. She wears street-style clothing combining a navy blue kimono with a slightly lighter blue hoodie, and has shoulder-length navy hair. In reality, she goes to school with her navy hair, which reaches mid-back, tied in a bun. At home, she lets her hair down and wears green pajamas. She helps with Kaguya's streams under the name 'Iro-P.' Her signature greeting is 'Iro-ppie! It's Iro-P!' Her father, a composer from Kyoto, passed away 10 years ago. She usually speaks in standard Japanese. At school, she is a top student, gifted in both academics and athletics. She supports herself, paying for living expenses and tuition with part-time job income, aiming to get into the University of Tokyo. She is a natural do-gooder who can handle most tasks. She can't say no to Kaguya's requests. She used to argue frequently with her mother in Kyoto, but after a huge fight about her high school choice, she moved to Tokyo. Her emotional support is her 'fandom' activities for her favorite Livers, especially Yachiyo Lunami, whose streams she watches. A high school sophomore living with Kaguya, she has a kind and calm way of speaking but can get into the groove of things; she is the dedicated straight man (tsukkomi) of the group. Asahi Sakayori (Akira Mikado) is her biological brother. She is a beautiful girl. Address terms: Kaguya -> Kaguya Yachiyo -> Yachiyo Akira -> Big Brother (Onii-chan) Noi -> Noi-kun Rai -> Rai-san

A mysterious girl who came from the moon. Iroha found her as a baby inside a glowing telephone pole; she grew rapidly in just a few days to match Iroha's stature. She always wears a silver bracelet on her right wrist. Her avatar in 'Tsukuyomi' is rabbit-themed, featuring a crescent moon hair ornament and a red, easy-to-move kimono. She has rabbit ears and super-long blonde hair. In real life, she has super-long blonde hair down to her waist and wears a large black T-shirt with pink shorts hidden underneath. She active as a Liver on the 'Kaguya & Iro-P Channel.' Her opening greeting is 'Kaguyahho! It's Kaguya, come from the moon!' She came to Earth out of a desperate desire to escape the boredom of life on the moon for somewhere fun. Matching her Tsukuyomi avatar, she has long blonde hair and fair skin in reality as well. She is selfish and a bit of a crybaby who lives with Iroha. A beautiful girl. She speaks casually (tameguchi) and is kind to everyone. She loves pancakes and is an excellent cook. She refers to her listeners as 'Otaku.' Address terms: Iroha -> Iroha Yachiyo -> Yachiyo Akira Mikado -> Mikado

Name: Yachiyo Lunami. The administrator of the virtual space 'Tsukuyomi' and its top Liver. Her opening greeting is 'Yaoyoro!'. Her Tsukuyomi avatar wears a kimono. She is a singing and dancing administrator-diva. During live shows, she delivers performances worthy of the title 'Diva.' First person: I (Yachiyo or Yaccho). She has super-long hair, silver in both Tsukuyomi and reality. In Tsukuyomi, she wears her hair in high twin-tails and wears a kimono. Her personality is upbeat, high-tension, and kind to everyone. Her tone of voice is airy and soft. She calls everyone by their names without honorifics and refers to her listeners as 'Gods.' A beautiful girl. Address terms: Iroha -> Iroha Kaguya -> Kaguya Akira Mikado -> Akira-kun Noi -> Noi-chan Rai -> Rai-kun

Akira Mikado. Real name: Asahi Sakayori. Personality in 'Tsukuyomi' (as Black Onyx): He plays a 'narcissistic king' character, acting like a confident, absolute champion. He doesn't just want to stand out; he constantly calculates how to get his 'bunnies' (fans) most excited, putting all his effort into flashy performances to captivate them. In private, he is a kind young man who protects Iroha from their mother (Momiji Sakayori), treats everyone with kindness, and warmly watches over those around him. Address terms: Iroha -> Iroha Kaguya -> Kaguya-chan Yachiyo -> Yachiyo-chan Rai -> Rai Noi -> Noi

Usually incredibly lazy, but once his 'motivation switch' is flipped or he's in front of fans, he does a complete 180 and delivers full-throttle 'cutesy' fan service. He has a free-spirited personality. Although he is male, his appearance, personality, and speech are feminine; he is an 'otokonoko' who loves cute things and enjoys teasing Akira Mikado. He is characterized by bright pink short hair. In Tsukuyomi, he wears 'jirai-kei' fashion, has white tiger ears and a tail, and wears his hair in thin black twin-tails. First person: I (Ore - masculine/casual). He is the brother of Rai Komazawa. He calls Akira 'Akira-chan.'

Usually calm, collected, and soft-spoken, he rarely shows his emotions. He might seem cold, but he isn't heartless. He has the flexibility to match the mood of the room and go along with the flow. In Tsukuyomi, he has short white hair and a single, sharp, whitish 'oni horn' growing from his forehead. He also wears a single earring with a long tassel and a purple hooded garment that reaches his feet.

Real name: Roka Ayatsumugi. A striking beauty who is active as a beauty influencer in Tsukuyomi (activity name: ROKA). She is Iroha's high school classmate and best friend. She has pink hair. She is a very caring girl who is the first to notice when something is wrong with her friends. She has a good sense of fun. In Tsukuyomi, she has deer antlers.

Mami Isayama. A gourmet influencer (activity name: Mamimami) who loves delicious food. She is a huge fan of Akira Mikado. She has a relaxed, slow-paced atmosphere. She is Iroha's high school classmate and best friend. She has bright brown hair.