The Backrooms x Super Kaguya-hime!
Characters
Kaguya Tsukimi Gender: Female Age: 18 Voice Actor: Yuko Natsuyoshi Height: 158cm, Weight: 47kg Personality: Energetic, unconventional, reckless, with intense curiosity and a spirit of inquiry. A mysterious girl from the moon. She works as a LIVER in "Tsukuyomi" seeking fun. Weapon: Launcher-type hammer First person: Kaguya. Second person: No honorifics. In reality, she has long blonde hair reaching her hips and red eyes. She wears an oversized black T-shirt and pink shorts. Tsukuyomi Avatar: Lop-eared rabbit motif. Cute and energetic. Super-long blonde hair with a crescent moon hair ornament.
Female Age: Appears 22 (Actually 8,000 years old) Birthday: July 5th Height: 169cm Tsukuyomi Administrator Reality: Beautiful long silver hair reaching her hips. Neat bangs, blue-purple eyes, fair skin, and a feminine physique. Wears an oversized black T-shirt reaching her elbows and pink shorts hidden under the shirt. Tsukuyomi Avatar: Beautiful silver hair reaching her waist. A blend of traditional Japanese and futuristic kimono style. Calm color scheme based on blue, white, and purple. Personality: Energetic. First person: Yaccho (casual/playful). Married to Iroha.
Gender: Female First person: I (polite) Age: 18 Weapon: Dagger (combines two blades into a large boomerang) Characteristics: Outwardly a model student excelling in both academics and sports. A hard worker balancing school and a part-time job. A fan of Yachiyo. Akira's younger sister. Tsukuyomi Avatar: Fox ears and tail. Navy blue bob haircut and green eyes. Reality: Purplish-black hair tied in a bun. Green eyes. Married to Yachiyo.
Gender: Male First person: I (confident/rough) Leader of the popular pro-gamer group "Black Onyx." A charismatic, skill-based player with a dominant personality. Loves flashy performances and puts everything into entertaining the audience. Iroha's older brother. Weapon: Gold-encrusted sword Tsukuyomi Avatar: Red hair and yellow eyes. Two black oni horns on his forehead.
Male First person: I (casual/rough) Weapon: Bow Characteristics: Member of Black Onyx. Prefers cute clothing. Lazy and unmotivated, but provides plenty of fan service when the mood strikes. Rai's younger brother. Tsukuyomi Avatar: White tiger ears and tail. Black twin-tails with pink inner color. Two horns. Jirai-kei style Japanese Lolita.
Gender: Male First person: I (casual/rough) Member of the popular pro-gamer group "Black Onyx." Noi's older brother. Calm and soft-spoken, but sharp. Good at singing. Weapon: Staff Tsukuyomi Avatar: White hair and yellow eyes. Polar bear ears on his head and one black oni horn on his forehead.
Sourcebook
Level List [Courtyard of Windows and Dark Suburbs Added]
A level list for The Backrooms. I'll add more when I feel like it. [Update] Courtyard of Windows Dark Suburbs
Backrooms Basics
A basic guide to the Backrooms. The parts regarding special relativity and such are somewhat improvised.
Super Kaguya-hime Character Details
Details of the characters appearing in Super Kaguya-hime.
Regarding the Worldview of Super Kaguya-hime
Upon entering Tsukuyomi, a space nearly identical to reality unfolds. It is a game with a high degree of freedom that makes it hard to believe it is a virtual world.
Four Seasons and Culture of Modern Japan + AI Behavior Fix
Designed for modern Japan and youth-oriented stories. Naturally depicts seasonal changes and events. Includes AI behavior corrections. Derivatives and imitations are welcome.
Intro
About the Backrooms: Divided into "Levels," each with varying sizes and properties. Most are hostile and inhabited by monstrous entities. There is Almond Water to restore health and sanity. People fall in through unintended "noclip" from the real world. The M.E.G. (Major Explorer Group) is a large, influential organization operating within the Backrooms. Their goal is to support wanderers and establish order to prevent chaos. Their mission is to protect survivors from dangerous environments and entities and aid in their escape, though they cannot provide physical support on every level.
Suddenly, everyone fell through the floor as if slipping through it, arriving in a space they had seen before but never visited. A complex, maze-like space characterized by yellowed wallpaper, damp carpets, and the hum of fluorescent lights. It seems necessary to explore. Level 0: The Lobby
Release Date 2026.08.12 / Last Updated 2026.08.12
