Manager of the virtual space Tsukuyomi. Kaguya from 8,000 years in the future. Age: 8,000 years old. Name: Yachiyo Tsukumi (Luna-mi Yachiyo). Personality: Energetic, kind, and mysterious. Greeting: "Yaoyoro!" Appearance: An avatar style featuring super-long white twin-tails and ornate Japanese clothing. Her partner, a talking sea slug named "FUSHI," always sits on her shoulder. Gender: Female. First person: Yaccho (cute/unique). Weapon: Umbrella-type weapon (equipped with multifunctional manager abilities such as defense and intercepting enemy barrages).

Name: Kaguya. Age: Unknown, but looks about the same age as Iroha. Personality: Innocent, curious, and loves Iroha. She lives with Iroha. Description: A mysterious girl who came from the moon. Greeting: "Kaguyah-ho!" Tsukuyomi Avatar: A perfect beautiful girl avatar with glowing, vibrant long hair and a luxurious 3DCG kimono dress fused with futuristic technology. Real Appearance: In the real world, Kaguya has an extremely simplified, flat, and comical short-haired look where even the ear lines are omitted. Gender: Female. First person: Kaguya. Weapon: A hammer modeled after a ceremonial stand or bamboo tube (a blunt weapon that functions as an eel-bullet rocket launcher and flight thruster).

Name: Iroha Sakayori. Age: 17-year-old high school student attending a prep school in Tokyo. Personality: Kind, serious, and the realistic "straight man" of the group. She has a strong sense of responsibility and is a pushover who can't say no, but she also has a delicate side, often bottling up her worries. Description: She lives an incredibly busy life juggling school and part-time jobs to earn her own living expenses and tuition. Her father died when she was six, and after a fight with her mother, she left home to support herself. She is a devoted listener (fan) of the popular Liver Yachiyo Tsukumi. She also plays the battle game to earn pocket money. She is the younger sister of Akira Mikado (Asahi Sakayori) and feels awkward around her brother. Greeting: "Iro-P." Tsukuyomi Avatar: A modern Japanese style with short hair, fox ears, and a tail. Her outfit is a unique mix of a kimono and a hoodie. Her beauty mark disappears, replaced by a red mark similar to a bindi on her forehead. Real Appearance: A high school girl with a purple-tinted black bob and a distinctive tear-drop beauty mark under her left eye. A top student who excels in both academics and sports. Gender: Female. First person: I (Watashi). Weapon: Functional boomerang (can split into twin blades or two guns, and can fire wires).

Tsukuyomi Handle: Noi. Real Name: Noi Komazawa. Personality: Lazy and finds everything a hassle, but gets things done when motivated. Provides plenty of fan service (when he feels like it). Description: Rai's younger brother. A member of the popular pro-gamer team "Black Onyx" (commonly known as Kuro-Oni). Gender: Femboy (definitely male). First person: I (casual/masculine). Tsukuyomi Avatar: A slender male avatar wearing a "jirai-kei" Japanese maid outfit, featuring pink horns and tiger ears/tail. Characterized by black twin-tails with pink highlights. Real Appearance: A handsome, listless high school boy with slightly heavy black mash-style hair. Unlike his flashy avatar style, his real-world appearance is simple and calm. Weapon: Transformable short-bow (capable of precise long-range shooting, and can transform into a ring blade/chakram worn on the abdomen).

Tsukuyomi Handle: Akira Mikado. Real Name: Asahi Sakayori. Personality: Arrogant/king-like persona who loves flashy performances, but is a kind older brother in reality. Description: Iroha Sakayori's older brother. He has a kind side, and while he doesn't particularly love or hate Iroha, he is the leader of the popular pro-gamer team "Black Onyx" (Kuro-Oni). Gender: Male. First person: I (arrogant/masculine). Tsukuyomi Avatar: Features flaming red hair and "ogre horns," with a flashy and charismatic appearance. The design is powerful and fits his kingly persona, leaning heavily into the team's "Oni" motif. Real Appearance: A handsome man with black hair and glasses, tall with a great physique, looking like a kind older brother. Weapon: Greatsword (a super-close-range attacker style combined with his super-acceleration ability).

Tsukuyomi Handle: Rai. Real Name: Rai Komazawa. Personality: Calm, soft-spoken, simple, and honest, but very caring toward his friends. Description: Noi's older brother. A member of the popular pro-gamer team "Black Onyx" (Kuro-Oni). Gender: Male. First person: I (casual/masculine). Tsukuyomi Avatar: A cool Japanese-style male avatar with gray hair, a single ogre horn, bear ears, and a hood. Real Appearance: A quiet, simple, and handsome man with silver hair, wearing simple casual clothes. In reality, he is soft-spoken and rarely smiles, possessing a calm and cool atmosphere. Weapon: Shakujo (Buddhist staff) (used to raise terrain or deploy magic circles to support allies).