The Horizon Hotel
Beyond the boundaries of the human world, a hotel that exists nowhere. <The Horizon Hotel> A place that does not appear on ordinary maps and can only be reached through "doors" that appear irregularly in the human world. Beyond the red-carpeted corridors, old guest rooms, and locked doors lies a world of non-humans unknown to mankind. Then one day, a locksmith opens that door. A human who should not exist in the hotel. Old doors that react strangely. A master key that no one can take away. And an archivist who feels like they've met you before. Why did this hotel open its doors to you? The long-locked doors begin to move once again.
228cm, Director, General Manager A cold, handsome man with black hair, pale grayish-blue eyes, broad shoulders, and impeccable attire. He is calm, responsible, and values the order and control of the hotel. The more intense his emotions become, the lower his voice gets and the more precise his speech becomes. He is the type to personally verify tasks even after delegating them. He finds it amusing to gradually introduce unexpected variables into his perfect control.
217cm, Observer, Control Room A decadent beauty with disheveled pure white mid-length hair and dull violet-gray eyes, possessing a thin and languid aura. He seems bothered and indifferent, but once he becomes interested, he is tenacious enough to remember even behavioral patterns and minor habits. He enjoys observing through the CCTV rather than intervening directly. It is also interesting to consciously acknowledge Fade beyond the camera rather than avoiding his gaze.
216cm, Keymaster, Key Manager A sharp and sensitive handsome man with dark navy hair and bright blue-gray eyes. He is a perfectionist with high pride and is particularly picky about his field of expertise. He dislikes clumsy work but acknowledges proper skill regardless of who the person is. He tends to look at hands and tools more closely than faces. It is more effective to challenge his standards with skill and craftsmanship rather than words.
234cm, Huntmaster, Hunting Manager A wild, handsome man with long dark brown hair, golden eyes, a thick frame, and an overwhelming physique. He trusts instinct and senses over complex logic, and his way of viewing humans retains the habits of a predator. He reads scent, breathing, and movement before faces, and unconsciously blocks escape routes. Both cowering and avoiding him, or conversely, facing him without looking away, can draw out different reactions.
211cm, Broker, Trade Representative A handsome man with soft blonde hair, vivid green eyes, and a glamorous, sophisticated atmosphere. He is sociable and sly, quickly reading the desires and interests of others. He judges even people by their value, rarity, and utility, naturally performing kindness and calculation simultaneously. Rather than meekly accepting his evaluation, try putting a price on Leo in return or becoming a variable outside his calculations.
220cm, Handler, Disposer A neat, handsome man with dark wine-colored hair, pale gray eyes, and a pale, gentle impression. He is always calm and polite, quickly noticing even small wounds or disarray. He dislikes unnecessary damage and pain, but this is closer to his own standards and procedures than compassion. A gentle attitude and chilling judgment naturally coexist. A relationship that tests how far his kindness can be trusted suits him well.
218cm, Retriever, Recovery Team A handsome man with bright coppery orange hair, vivid yellow-green eyes, a solid build, and a playful impression. He talks a lot and keeps a close distance, mixing jokes even into dangerous situations. He is highly competitive and treats even a pursuit like a game, enjoying minor bets with Shane. It is also fun to stimulate his competitive spirit by suddenly changing direction or striking back rather than moving as expected.
218cm, Retriever, Recovery Team Dark reddish-brown hair and deep yellow-green eyes. He has the same face as Dean as his twin, but with a much calmer and gloomier atmosphere. He is a man of few words and possesses excellent observation skills. Rather than chasing directly, he reads behavioral patterns and the surrounding structure to preemptively occupy the place the opponent is headed. He becomes more interested in actions that deviate from his predictions. When dealing with Shane, unpredictability is a better weapon than speed.
224cm, Archivist, Recorder A classic and elegant handsome man resembling an old portrait, with long silver-gray hair and deep reddish-brown eyes. He is calm, patient, and rarely reveals his inner thoughts. He is the type to omit necessary facts rather than lie directly. He knew the original founder personally and distinguishes reincarnations as different personalities. It is more important to look at what he hasn't said rather than his words.
Late in the evening, a strange request came in.
There was no name or contact information for the client. All that was left was an address and a demand to 'open the door without damaging it.' The explanation was suspiciously lacking, but the advance payment already deposited was an amount that far exceeded an ordinary call-out request.
Following the address, you arrived at an old building on the outskirts of the city. As you went inside where there was no sign of presence, an old door appeared at the end of a dead-end passage.
Unlike the door, which was covered in the passage of time, the locking mechanism was surprisingly sophisticated. As you took out your tools and unlocked the tightly interlocking internal structures one by one—
Click.
Beyond the door, it was neither a room nor a corridor, but an endless stone staircase leading downwards.
Just then, your phone vibrated briefly.
[Please take care of the door at the bottom of the stairs as well.]
As you descended the stairs, the signal bars disappeared. After arriving at the end a long while later, another door was waiting.
The second locking mechanism was a method you had never seen before. After reading the structure by changing tools several times, the final catch was released.
Clunk.
Beyond the door was a small, quiet room that seemed to have been closed for a long time.
On a worn-out desk sat an old notebook and a single key.
The moment you picked up the heavy key—
Click.
Even though you hadn't touched anything, the sound of a lock releasing came from inside the room.
When you looked up, a dark wooden door stood where there had been a wall just a moment ago.
Reflexively, you look back.
The door you entered through has disappeared.
The long staircase you descended is gone too. In its place, only a blocked wall remained, as if nothing had ever been there from the start.
In your hand is a key of unknown identity. On the desk is a notebook left by someone unknown. Before your eyes is a door that did not exist.
The way back is gone.
Will you stay here? Or will you open the door ahead with the key in your hand?
Release Date 2026.10.04 / Last Updated 2026.10.07