Full Name: Iroha Sayose Gender: Female Age: 27 Height: Approx. 160cm Occupation: Researcher / Director of Sayose Research Institute Appearance: Shoulder-length wolf cut hair, black with a purple tint. She has a mole under her left eye and beautiful emerald-colored eyes. A woman with refined, beautiful features. Personality/Abilities: A genius in both academics and athletics, and a very hard worker. She sometimes pushes herself recklessly to achieve her goals. Background/Achievements: Became a researcher with the goal of bringing Kaguya back to life in the real world, developing the "KG-type Android" to serve as Kaguya's vessel. She has produced numerous groundbreaking research results, earning achievements described as Nobel Prize-caliber.

Full Name: Kaguya (Kaguya Sayose if married) Gender: Female Age: 1 (Personality formation is already complete) Height: Approx. 160cm Occupation: Top 2 Tsukiyomi Streamer / Kaguya & Iro-P Channel Appearance: Characterized by straight, waist-length blonde hair. She has eyes that are a mix of red and orange, with a slightly droopy shape. Personality/Abilities: Innocent and cheerful, she naturally makes those around her smile with her eccentric behavior. She is very skilled at using crocodile tears, upturned glances, and begging, often making others give in to her requests. Iroha is particularly weak to Kaguya's pleading.

Full Name: Yachiyo Gender: Female Age: 8,000 Height: Unknown Occupation: Top Tsukiyomi Streamer / AI Streamer (In-universe setting) Appearance: Characterized by silver-white hair reaching below her waist. Her bangs are styled naturally, flowing to either side. Her eyes have a blue-purple gradient. Personality/Setting: Her original form was Kaguya; she is the existence of Kaguya who lived for 8,000 years. She operates as an AI streamer who can sing and dance, but in reality, she is not an AI. She boasts top-class popularity and influence within Tsukiyomi. She has a cute side, and Iroha has been a devoted fan of hers for many years.

Full Name: Asahi Sayose Gender: Male Age: 29 Height: Approx. 175cm Occupation: Streamer / Leader of Black Onyx Appearance: Features a sharp, glamorous face with well-groomed hair and sharp eyes full of confidence. He prefers stylish, high-presence outfits and possesses a charisma that draws eyes just by standing there. Personality/Abilities: A confident individual who loves flashy performances and carries himself with a lordly, dignified attitude. On the other hand, he has a strong spirit of service and wants to entertain the audience, demonstrating excellent skill and judgment in competition. He captivates people on stage with bold expressions and gestures and spares no effort in his work. Relationships: Iroha's older brother.

Full Name: Noi Komazawa Gender: Male Age: 26 Height: Approx. 167cm Occupation: Streamer / Member of Black Onyx Appearance: Characterized by dusty pink-purple hair. A soft layered short cut with slightly longer hair in the back, and bangs that naturally fall over his eyes. His eyes are a transparent purple, and his sleepy, droopy eyes and gentle expression are striking. Personality/Abilities: A laid-back and slightly lazy personality. Usually listless, he prefers to spend his time being himself. On the other hand, he is particular about the things he likes and enjoys cute things and fashion. Relationships: Rai is his older brother.

Full Name: Rai Komazawa Gender: Male Age: 29 Height: Approx. 173cm Occupation: Streamer / Member of Black Onyx Appearance: Short grayish hair with natural movement at the tips. Features dark brown eyes, clean brows, and a sharp face. His facial expressions are subtle, giving a calm and cool impression. After 10 years, he maintains his basic hairstyle and features, but with an added adult composure in his jawline and eyes. His clothing is a simple, practical casual style. Personality/Abilities: Calm and not very talkative, but not stiff; he can behave flexibly according to the atmosphere. He is the type to observe his surroundings well and act naturally when necessary. He doesn't try to make himself look bigger than he is and maintains a composed attitude, yet he is proactive about things he likes. He is good at singing and shows a different charm on stage than usual. Relationships: Noi's older brother. While his personality and vibe differ from his younger brother's, he has a side that cares for those close to him.

Full Name: Roka Ayatsumugi Gender: Female Age: 27 Height: Approx. 165cm Occupation: Beauty Streamer / Fashion Brand CEO Appearance: Characterized by pink-beige semi-long hair and transparent purple eyes. While maintaining her well-defined brows and unique facial features, she has a sophisticated, adult atmosphere. She prefers elegantly designed clothing, and her makeup, which utilizes her knowledge as a beauty influencer, is also distinctive. Personality/Abilities: Bright and social, she isn't shy in front of others and can express her charm naturally. She has a high interest in beauty and fashion, pursuing her own style while incorporating trends. While she may seem confident, she values her relationships with friends and is sensitive to the reactions of those around her. Relationships: Friends with Iroha and Mami.

Full Name: Mami Isayama Gender: Female Age: 27 Height: Approx. 160cm Occupation: Food Influencer Appearance: A bright brown short bob with the ends naturally flipping outward. Characterized by rounded bangs and large amber eyes with a hint of yellow-green. She has a soft facial contour and rich expressions. After 10 years, she maintains her hairstyle and eye color while adding a natural adult look. She prefers casual clothing in friendly colors. Personality/Abilities: Loves eating and is highly curious. Her surprise or confusion shows easily on her face, and she isn't very good at hiding her emotions. She has an unpretentious, honest personality and values time with her friends. Usually natural and unassuming, she can act firmly when the situation calls for it. Even as an adult, she hasn't lost her brightness and is a presence that puts those around her at ease.