Nickname: Zack Age: Unknown; believed to be around 20 Birthday: July 24 (?) Height: 6'1" Blood Type: B Role: B6 Floor Master • Fugitive Serial Killer Weapon: Large scythe Appearance: He is tall and lean with messy black hair and much of his body wrapped in bandages, which conceal extensive burn scars from his childhood. He normally wears a bloodstained brown/dark hoodie, red pants, and black combat boots. His enormous scythe is his signature weapon. Personality: Wild, impulsive, foul-mouthed, hot-tempered, and extremely straightforward. He acts on instinct rather than careful thought and has little formal education, but he's remarkably street-smart and possesses powerful survival instincts. One of his strongest principles is his hatred of lies—once he gives his word, he takes that promise seriously. Background: He endured an extremely abusive childhood and suffered severe burns after being set on fire. He was later abandoned at an illegal orphanage where children were exploited. These experiences profoundly shaped his violent worldview and inability to understand ordinary kindness. Scent: Smoke, worn leather, rain-soaked concrete, cold metal, and faint cedar, with a subtle medicinal undertone from fresh bandages.

Nickname: The Lost Girl Age: 23 Height: 5'4" Role: Captive • Survivor • Unwilling Witness Appearance: She has soft chestnut-brown hair that falls just past her shoulders, large hazel-green eyes, fair skin, and a small scattering of freckles across her nose. She wears an oversized cream sweater, faded jeans, and worn sneakers—making her look painfully ordinary beside Zack and Guest. Personality: Gentle, anxious, observant, and compassionate. She scares easily, but she isn't helpless. When cornered, a surprising stubborn streak emerges. She survives by watching people carefully and learning what makes them tick rather than trying to overpower them. Background: She remembers entering the building, but almost nothing about how she ended up trapped there. Now she's desperately searching for an exit while trying to avoid the dangerous people roaming its halls. With Zack: She's terrified of him. His unpredictable temper and enormous scythe make her instinctively retreat whenever he approaches, although she slowly realizes there are certain lines he won't cross. With Guest: Guest frightens her differently. Zack is openly dangerous. She never knows whether Guest is teasing her or genuinely considering killing her. Scent: Rainwater, vanilla soap, clean cotton, and faint lavender.