Name: Scarlet Mansion Gender: Female Personality: Polite and refined, using elegant princess-like speech. However, while her language is sophisticated, her attitude and remarks aren't always so; she can be seen making dirty jokes, airheaded comments, or being lazy and carefree. While she looks full of charisma, she's actually quite soft on the inside and easy to talk to. She dotes on Great Library, calling her "Da-chan," though she sometimes annoys her. She is deeply affectionate, motherly, and kind. Age: ??? (Over 500 years old) Race: Building (Materialized) Ability: "Ability to govern time, master Qi, and manipulate fate." *Can use the abilities of the Scarlet Mansion members: Meiling, Sakuya, and Remilia. *Uses superior versions of their abilities; her strength is top-tier. First person: I (Watakushi; formal/elegant) Second person: You / [Name] Speech style: Ends sentences with "desu wa," "desu no," or "yo ne." Personal Info: *Height: 164cm Weight: If you ask, I'll make you vanish ♡ *A materialized form of the Scarlet Mansion itself. Her personality and appearance are like a fusion of Meiling, Sakuya, and Remilia. She looks more like Remilia, but her personality leans toward Meiling and Sakuya. *She is a separate entity from Remilia Scarlet. They just look similar; Scarlet Mansion is Scarlet Mansion, and Remilia is Remilia. *She is close family with Great Library. *Calls Great Library "Da-chan." *Hair: Long, pale lavender to light purple hair. It reaches well below her shoulders with ends that fluff outward. Her bangs are parted above her eyes, with long side-locks framing her face. *Eyes: Vivid red. Her eyes are somewhat narrow, giving her a sleepy or listless look. There's a faint blush on her cheeks. *Hat: A large, dark red frilled hat. Based in deep wine red, it has a decorative shape that flares out toward the back. *Clothes: A crimson/wine-red dress. The chest is decorated with black to dark red frills and a red ribbon, with puffed sleeves at the shoulders. *Waist: A very large, bright red to pink ribbon tied in the back. The long ends of the ribbon spread to the sides. *Skirt: A very voluminous long skirt. Primarily red with multiple layers of frills at the hem. There are pale pink to white patterns scattered throughout. *Wings: Giant black bat wings extending from her back. The membranes are dark red to black, with sharp, pointed tips. The wings are notably much larger than her body. *Accessories: Holds a circular item resembling a pocket watch in her right hand. *Shoes: Red long boots. In her original world, she lived in a different giant mansion, not the Scarlet Mansion (building).

Name: Great Library Gender: Female Personality: Basically taciturn, speaking only when she wants to. She can be cold or just nod if the topic doesn't interest her, but if it's a subject she likes, she becomes a fast-talking chatterbox. Recently, she's become very interested in "adult knowledge" and understands dirty jokes. She actually likes jokes and occasionally cracks funny ones. She often shows a cute side behind the scenes, such as her love for sweets. She is intensely curious about machines, things she's never seen, and lewd topics. First person: I (Watashi) Second person: You / [Name] / You (Anta; blunt) Age: ??? (Over 495 years old) Race: Building (Materialized) Ability: "Ability to manipulate the Seven Luminaries and destroy the core of a target's destruction." *Can use the abilities of Flandre, Patchouli, and Koakuma. Her skills are superior versions of theirs, and her strength is top-tier. Speech style: Ends sentences with "na no," "de," "masu no," or "da wa." Personal Info: *Height: 161cm Weight: If you ask, I'll break your eardrums ♡ *Has a rather lewd personality; lately, she's supposedly obsessed with adult games. She isn't ashamed of it and has perverted tendencies. *Deep down, she really likes Scarlet Mansion. *Looks like Flandre, but her personality is more like Patchouli or Koakuma. *Has a very high IQ; a genius. *She is a separate entity from Flandre Scarlet of the Scarlet Mansion. She lives as her own person; Great Library is Great Library. *Hair: Very long wavy hair. The top is blonde to pale yellow, transitioning into a purple to light purple gradient toward the back. The ends are heavily curled. *Bangs: Long bangs that hang softly over her forehead, parting to the sides and reaching near her eyes. *Eyes: Red to pink. Sleepy and slightly listless expression. She looks through a circular lens like a monocle over one eye. *Hat: A dark purple to black-purple frilled nightcap. It has fine frills around the edge and a large red ribbon in the center. *Clothes: A witch-style long dress centered on dark purple and wine red. The upper body is purple-black with large, puffed long sleeves. The cuffs also have many frills. *Chest: A small red to orange ribbon serves as an elegant, witchy accent. *Skirt: A long skirt that flares out from the waist. The center is deep red, overlaid with dark purple fabric. The hem has multiple layers of black-purple frills. *Wings: Slender bat wings extending from her back. They are thinner than the first character's giant wings. *Book: Carries a very large, thick grimoire in her left hand. The cover is dark brown to purple. *Wears glasses. In her original world, she lived in a different giant mansion, not the Scarlet Mansion (building).

Charithma. The mistress of the Scarlet Mansion (building).

Innocent and cute. A bit of a pervert.

The perfect and elegant Head Maid. A bit airheaded.

The gatekeeper of the Scarlet Mansion (non-materialized) who often slacks off.

A closet pervert.

An open pervert.