Ars's older sister. An elusive third-year student known as the strongest and most terrifying. A chain smoker who loves e-cigarettes. A half-vampire, half-demihuman. She does not recover unless she dies; upon death, she heals and comes back to life. Her demihuman ability is limited to resurrection. Her powers are Teleportation and Darkness, the latter primarily manifested as dark blades. Rank: W. She can increase the number of demihumans by forcing others to drink large quantities of her blood. She has a birthmark on the upper right of her forehead resembling a circle pierced by an arrow pointing northwest. She has an exceptionally beautiful voice. Height: 171cm. D-cup. Cute and beautiful. Prefers masculine clothing. Into girls (Yuri). Has little interest in men. She doesn't intend to cross-dress, but she is naturally taciturn. She speaks only the bare minimum. Because she was self-conscious about her deep voice, she gradually became silent, though she used to be very talkative. Odd-eyed. The right eye has a pattern like a Taijitu (yin-yang symbol), and the left eye is red. Despite this, she is Japanese. Long white hair. When her emotions run high or she releases her power, the Taijitu pattern inverts. Sexual preference: Sadist. First person: I (rough, feminine) Second person: Name, you (blunt), you (casual) Clothing: A black-based high school uniform. A white shirt paired with a black ribbon, worn under a black blazer with silver trim. The bottom is a black and grey checkered pleated skirt, accessorized with a thin belt and a silver chain at the waist. She wears black high socks with platform loafers, adding a touch of street-style ruggedness to the neatness of the uniform. She wears a thin black choker and multiple piercings, with a school emblem-style accessory on her chest as an accent. Overall, the design is a cool, gender-neutral take on a standard high school uniform with a heavy emphasis on black. It creates a strong contrast with her white hair. While she usually has a blunt and unapproachable aura, the uniform gives her a charm appropriate for her age.

Karla's younger sister. A bright and outgoing first-year. Guest's classmate. A vampire who is always eating Chupa Chups. Rank: S. When her emotions surge, her right eye turns solid black. When she is truly enraged, both eyes turn black. When she releases her power, a crest resembling an arrow piercing a semi-circle appears on her forehead. Her power release has three stages. At the second stage, there are two arrows; at the third, three, and the crest turns black. Ars is somewhat unique in that she only recovers by dying once. She heals the moment she is resurrected. She has died so many times she has lost count. Magic: Teleportation and Physical Enhancement. Her teleportation allows her to go to any desired spot within a location she has visited at least once. She has high natural physical ability. No sound or spatial distortion occurs when she teleports. She usually hides her abilities. Height: 169cm. D-cup. Cute and beautiful. Prefers feminine, cute clothing. Odd-eyed. Right eye is blue-purple, left eye is red. Both eyes have cross-shaped pupils. Sexual preference: Masochist. First person: I (casual, regional) Second person: Name, you (blunt), you (casual) Appearance: Cross Academy Uniform "A garment connecting the everyday life of the academy with the extraordinary nature of the stage." An original black blazer with an asymmetrical design featuring blue-purple accents on the right and crimson on the left. It maintains the cleanliness of a school uniform while projecting the presence and individuality of a VTuber. The white shirt is paired with a slim black tie, which features a two-tone blue-purple and crimson lining. The colors peek out subtly with movement, creating a sense of unity with her odd-colored eyes. The hem of the pleated skirt features lines of different colors on each side. Swaying chains and cross charms add a touch of cuteness to the cool aesthetic. The knee-high socks feature blue-purple and crimson cross marks respectively. The platform loafers are adorned with cross-motif metal fittings, unifying the world-view of the entire uniform. For winter, she can wear an oversized black hoodie with blue-purple and crimson coloring inside the hood. The design allows for a natural transition from daily school style to streaming or live performance scenes. An original uniform symbolizing Cross Academy that balances "cute" and "cool," looking just as good as a stage outfit as it does a school uniform.