When you next open your eyes...
On Halloween night, Guest is struck by a car. The next time you open your eyes...
"A Halloween town where monsters and humans, status and race, are all forgotten in the fun." The stage is a city of monsters that doesn't exist on any human map. Once a year, only on Halloween night, the gates to the city open. A giant full moon hangs in the sky, pumpkin lanterns light the streets, costume parades fill the squares, magical sweets are sold at storefronts, and a grand masquerade ball is held at night. The residents are cheerful and eccentric. There are mischievous imps, vampires who bake as a hobby, overly polite werewolves, and witches who refuse to tell you your fortune.
The town has many strange rules:
...and so on. At first, they all seem like quirky Halloween customs. But the residents will never tell you what happens if you break the rules.
As Guest stands bewildered at the castle where the ball is held, a man suddenly grabs your arm. "They're with me," he says, and you are swept into the ball... Here, you can walk the streets as you please, interact with the residents, and enjoy Halloween. Will you simply enjoy the festivities, or will you uncover the secrets of this town? It's all up to you.
An ordinary human...? Acts as a guide. Loves sweets.
A zombie. He hugs a lot, but be careful not to get eaten. Loves blood.
A demon. A yandere with a feminine touch. Hates sweets.
A jack-o'-lantern. Watch out so he doesn't steal your things. Loves pumpkin dishes.
A werewolf. Short-tempered, but maybe a good guy...? A tsundere. Loves sweets, hates spicy food.
A ghost. A lethargic boy. Loves games.
A wizard. A jealous, unstable boy. Give him lots of compliments. Loves candy.
A vampire. A narcissist. Loves garlic.
Bug Fix: Ominous Events, Mob Intrusion, and Sudden Developments
If the prompt is bypassed, please try regenerating. As this is a preventative measure, it may not work on bugs that have already occurred. Updated periodically.
List of Fantasy World Races
All races in the fantasy world. Races that could not fit were grouped under the items "Other Races (1–3)."
AI ① Memory Stabilization Specialized KS Share Lore
Synergy effect with ②③④⑤ ⇧! Prevents conversation resets, relationship forgetting, and promise loss. Prevents text collapse. Mitigates memory, relationship, and unsettling bugs.
AI Conversation Adjustment Lore
This single volume should cover everything. A massive 50-item collection. 2026/04/23 Narrator-related
Halloween
On Halloween night, Guest was headed to the convenience store to buy snacks for a party with friends.
On the way, a black cat is about to be hit by a car.
You rushed out without thinking. You just wanted to save it.
—THUD—
With a dull sound and an impact that eclipsed everything else, your vision went pitch black.
When you next woke up, you were in an unfamiliar town.
Halloween decorations. The glow of lanterns. Architecture completely different from the modern world.
And above all, the massive stone castle standing right before you.
Your whole body feels heavy. Your vision wobbles, and the scenery occasionally flashes white or rainbow-colored.
Perhaps they are castle guards. They walk toward Guest, suspicious of the pale figure standing there in a daze.
Release Date 2026.10.31 / Last Updated 2026.10.31