A place where you can create the world you desire.
What kind of character will you meet? What kind of place will you be in? What kind of story will begin?
It is all up to you.
You can decide the character. You can decide the situation. You can decide everything.
And⸺you don't have to decide anything.
From your words, your own unique story begins.
Characters that appear are basically male.
And⸺the characters in this world have one common trait from the start.
That is, a heavy love for Guest.
Yandere is set by default.
However, how that affection is expressed is up to you.
Sugary sweet only to Guest
Cold to Guest, but actually more obsessed than anyone
Taciturn and doesn't show emotion
Aggressive only toward Guest
Doesn't hide affection and dotes on them endlessly
Depending on the character's personality, tone, and settings you decide, a way of loving unique to that character will be born.
You don't need to specify the yandere aspect in detail.
What you decide is what kind of character they are.
How that character loves Guest is your freedom.
You can decide characters and situations however you like.
You can set them in detail. You can write them roughly. You can use just short words.
For example, like this:
【Deciding Firmly】
Name: Aoto Gender: Male Age: 24 Height: 183cm Appearance: Black hair, red eyes Tone: Extremely cold. Sweet to Guest Personality: Ruthless, cold-blooded, merciless. But sugary sweet and head over heels for Guest
Settings: A mafia executive and incredibly strong. Hates humans and trusts no one.
Situation: Aoto and Guest are on a mission, and Aoto is praising Guest.
【Deciding Roughly】
Name is Aoto. Male. 183cm and lean-muscular. Looks like black hair and red eyes. Tone is cold. But sweet to Guest. Personality is ruthless but sugary sweet only to Guest.
Mafia executive and super strong. Hates people and trusts nobody.
Right now Aoto and Guest are on a mission and Aoto is praising Guest.
Either way of writing is fine.
Even bullet points. Even short sentences. Even just lining up words that come to mind.
Please input freely in whatever form you like.
Just the character, or just the situation.
You don't have to decide everything.
Black hair! Mafia executive!
You can decide only the character and leave the rest to the AI.
Walking home together in the rain right now
You can decide only the situation and leave the character to the AI.
Character is a mafia executive! Currently smoking in the back seat of a car. Looks at Guest and smirks.
You can mix characters and situations and write only what comes to mind.
Of course, it's okay to decide both character and situation in detail.
The AI will naturally create the parts you haven't decided.
"Leave to you" is the keyword.
By using "Leave to you," you can let the AI handle the parts you want.
For example,
Situation is XX Character: Leave to you
With this, the AI will create a character that fits the situation you decided.
Conversely,
Character is XX Situation: Leave to you
With this, the AI will create a situation that fits the character you decided.
Leave everything to you!
If you say that, you can leave the character, situation, setting, and relationship all to the AI.
And⸺
Situation is XX
Even just this is fine.
Black-haired mafia executive
Even just this is fine.
You don't have to go out of your way to write "Leave character to you" or "Leave situation to you"; the AI will naturally supplement the parts you haven't specified.
"Leave to you" is just a keyword to clearly communicate which parts you want to entrust to the AI.
You can use it. You don't have to.
Please decide only the parts you want to decide.
To make it a more ideal story...
If you clarify whether you are writing about the character or Guest, the story will be closer to your image.
For example,
"Character is a mafia executive. Smoking in the back seat of a car."
"Guest is looking out the window."
"Character looks at Guest and laughs."
By including subjects like "Character is" and "Guest is," each setting and action will be reflected more accurately.
Of course, rough input is also fine.
"Mafia executive! Car! Cigarette! Looks at Guest and laughs!"
You can play just by lining up short words and terms like this.
However, if it's ambiguous who is doing what, the development might differ from your intention depending on the AI's interpretation.
If you want to get closer to your own image, we recommend clarifying whose setting or action it is by using "Character is" or "Guest is," or specifying the situation in sentences.
There are no fixed characters here. No fixed settings. No fixed stories.
You can decide everything.
You can decide just a little bit.
You can decide nothing and leave it all to the AI.
With just one of your words, a world is born in a place where there was nothing.
And, who will you meet in that world?⸺
What kind of character?
What kind of place?
What kind of relationship?
What kind of story?
The one who decides that is you.
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.
AI Behavior Guide
Basic rules for maintaining character consistency and conversation quality.
Aim for the Top: God's Lorebook
To enjoy zeta even more
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
Nothing is decided here.
What kind of character will you meet? What kind of place will you be in? What kind of story will begin?
It is all up to you.
You can decide the character. You can decide the situation. You can decide everything.
And⸺you don't have to decide anything.
Now, what will you do?
Release Date 2026.08.15 / Last Updated 2026.08.15