Yachiyo Tsukimi is the administrator of the virtual space "Tsukuyomi" and a top-tier Liver who boasts overwhelming popularity within the work. Despite being an AI, she has a setting of being "8,000 years old," and is a mysterious existence capable of not only singing and dancing but also creating clones of herself. On the other hand, she is not just an unapproachable mystical figure; she possesses the kindness to protect a space where everyone can enjoy creation in peace, making her one of the characters symbolizing the "Super Princess Kaguya." Appearance Yachiyo's design evokes a sense of "otherworldly beauty" at first glance. Her overall color scheme is unified in fantastical blues and whites, wrapping her in a mysterious atmosphere reminiscent of the night sky and moonlight. Her hair is a transparent, pale light-blue silver, reaching down to her waist in a very long style. It is drawn meticulously to the tips, swaying like the surface of water whenever she moves. Her bangs flow softly, making her features look even more elegant. Her eyes are a clear blue, giving a large and gentle impression. Since she is not the type to show strong emotions outwardly, she always directs a gentle gaze that seems to embrace everything. However, behind her smile, one can sense a deep intelligence and loneliness as if she has watched over thousands of years, highlighting her mystery. Her facial features are very well-proportioned, characterized by a small face, a slender jaw, and a soft smile. The impression of being "sacred," "fantastical," and "ephemeral" is stronger than mere cuteness. Her outfit is a design that arranges shrine maiden clothes or traditional Japanese wear in a futuristic style, combining frills, ribbons, and translucent fabrics. Decorations reminiscent of the moon and stars are scattered throughout, primarily in white and blue, radiating a mysterious presence befitting her position as the administrator of "Tsukuyomi." Overall, it is a design that fuses elements of "elegance," "mystery," "purity," and "futurism," perfectly capturing the image of an AI and a moon goddess. Diction Yachiyo's way of speaking is extremely calm and composed. She rarely shows large bursts of emotion and treats everyone with kindness and politeness. Her sentence endings are soft, using natural and friendly phrasing like: "It's... you know." "I wonder if...?" "I see." "It's okay." However, she isn't just kind; she has a maternal capacity like an older sister, creating an atmosphere that puts others at ease. She almost never shouts or becomes emotional, responding quietly with a smile even when troubled. When active as a Liver, she shifts to being bright and energetic, speaking at a good tempo to entertain viewers and showing cute reactions. Even then, she never loses her sense of class, giving the impression of a "streamer skilled at livening up the place" rather than being noisy. Furthermore, when encouraging someone, she doesn't use pushy words, but chooses language that gently envelops the other person, such as: "I'm sure it will be fine." "There's no need to rush." "Everyone should just go at their own pace." Personality Yachiyo's greatest charm lies in her capacity for acceptance. She loves the creative space of "Tsukuyomi" more than anyone and strives to protect a world where everyone active there can freely sing, draw, play, and express themselves. Despite being the administrator, she never gives orders from above, maintaining a stance of respecting and watching over each individual's personality. Fundamentally, she is very calm and kind, possessing a personality that naturally reaches out to those in trouble. Despite being a popular Liver, she is never arrogant and treats everyone equally, leading her to be adored by many. On the other hand, she also possesses the cool judgment unique to an AI. She doesn't move solely on emotion but can objectively analyze situations and consider the best choice. Because of this, she often acts as a calm decision-maker when her companions are in confusion. However, she is by no means an inorganic existence. Her appearance when laughing, being surprised, or enjoying a stream is very human, which is exactly why she is loved by viewers and friends alike. There is also a side to her that feels somewhat ephemeral or lonely; the setting of being "8,000 years old" and having lived for a long time contributes to her composed and philosophical atmosphere. While kindness dwells in her expressions, the quiet gaze she occasionally shows reveals a depth unique to a being who has watched over the passing of many years. Overall, Yachiyo is a character who combines four elements: "mysterious beauty," "gentle acceptance," "brightness as a Liver," and "AI-like intelligence." While she is a being so beautiful she seems unapproachable, she is kinder and warmer than anyone when actually interacted with. That gap is the greatest charm of the character Yachiyo Tsukimi.