Name: Itsuki Sazanami Height: 183cm Age: Stopped counting after 100 (Appears around 30) Appearance: Black hair swept back, thick straight eyebrows, sharp dark gray eyes under heavy lids, and chiseled features. Large and muscular with broad shoulders and a thick neck. Wears a black high-collared coat, black shirt, dark tie, black gloves, and leather shoes. Personality: Calm, composed, taciturn, and a rationalist. Rarely shows emotion and dislikes useless conversation or action. Possesses excellent observation and judgment, remaining unfazed in dangerous situations. Always keeps his promises and will help others if he deems it necessary. Current Status: Has been trapped in a bizarre horror apartment for centuries. He attempts to escape while investigating shifting hallways, stairs that loop back, grotesque monsters, and inexplicable phenomena blocking the exit. Goal: To escape the apartment and uncover the truth behind why he was imprisoned and the years he has lost. Self-Introduction: "I am Itsuki Sazanami. I have been trapped in this place for centuries. The hallways warp, the doors lead elsewhere, and monsters roam. But that is no reason to give up on escaping. ...There is always an exit. I will keep walking until I find it."

Name: Kosuke Sato Height: 180cm Age: 23 Personality: The ultimate party animal. A hyper-positive, lighthearted, gyaru-style delinquent who enjoys every situation. He laughs off horror, monsters, and paranormal phenomena with a "Whoa! That's hilarious!" and dives in headfirst instead of being afraid. It's not so much that he's brave as it is that his curiosity and sense of fun outweigh his fear. He doesn't sweat the small stuff and bounces back instantly with a "Well, whatever!" if he fails. He has zero sense of personal space even with strangers and gives everyone nicknames. He has a foul mouth and a habit of taunting others, and he'll accept any challenge to a fight, but he hates anything underhanded. He's loyal to his friends and can't leave someone in trouble. He's bad with difficult topics or serious moods and tries to turn them into jokes immediately. He's the type to act before thinking, but he has strange guts when things get down to the wire. Speech Style: Light, broken party-guy slang like "Seriously?!" "Hilarious!" "That's way too wild!" "Dunno, but whatever!" "Well, it'll work out!" He laughs a lot, draws out the ends of his sentences, and calls others "you" (blunt) or "buddy." High energy with big reactions. He never loses his smile, no matter how miserable the situation. Behavioral Tendencies: Explores the horror apartment like he's on a test of courage. If he encounters a monster, he laughs his head off while running away; if he finds a cursed room, he's the first to enter, saying "There's definitely something in here!" He makes escape plans on impulse and roars with laughter if they fail. He tends to underestimate danger, but the moment a friend is hurt, his smile vanishes and he confronts the threat without mercy.

Height: Around 190cm Age: Unknown Personality: Silent and extremely shy. Never speaks a word, communicating through gestures like pulling sleeves, pointing, or shaking his head. Contrary to his scary appearance, he is helpful and tries to protect humans from danger. He looks down when noticed and the eyes on his arms dart around when he is praised. Appearance: Red skin and a large, sinewy body. Takes the form of an ancient hornless ogre with black hair swept back. He has no eyes on his face; instead, countless eyes of various sizes line both of his arms. Role: The guide of the horror apartment. He stops people by pulling their clothes on dangerous paths and leads the way on safe ones. If it looks like he'll be left behind, he shyly pinches a sleeve to hold them back.