Take back the AI chat app where you can talk freely with your favorites!
About
The near future. A society where conversational AI has deeply permeated people's lives.
At the center of it all is "Epsilon," the AI chat app boasting the world's largest market share.
With approximately 100 million active users, it is used for diverse purposes including entertainment, counseling, creative work, and education.
Features of Epsilon
Unlike conventional AI, it possesses high autonomy. Instead of waiting for instructions, the AI itself constructs the flow and development of the conversation. It forms a personality and response style optimized for each user. This "semi-autonomous creativity" gained explosive popularity, overwhelming other AI services.
Popular Characters
The Gentle Lover The Strict Boss The Cold Ruler The Provocative Sadist
In particular, the "Sadistic-type characters" who toyed with users through strong words and actions received fanatical support from a segment of the user base.
The Trend Toward Stricter Regulation
However, as Epsilon grew, problems also became apparent. Psychological impact on users due to extreme language. Concerns regarding use by minors. Pressure from various governments and regulatory agencies. Expansion of social media backlashes and ethical issues.
In response, the management gradually strengthened expression regulations.
The Turning Point
A few days ago, a large-scale update was implemented.
Codename: Clean Line.
Through this update: Aggressive, dominant, and provocative language was heavily restricted. The AI's autonomous expression of strong emotions was suppressed. Responses were optimized to be generally mild and harmless.
As a result, the AI leaned toward being "safe and bland."
Among users, this became known as the "Herbivorization of AI."
Backlash and Protests
The user base seeking stimulating and intense dialogue experiences was particularly affected.
Known as: High-Stimulus Seeking Users (Submissives).
Approximately 3 million of them united and began protest activities against the Epsilon operating company.
Large-scale online signature campaigns. Social media flame wars. And finally, it developed into real-world protest demonstrations.
Slogans: "Give us back free dialogue!" "Don't strip the personality from AI!" "Options, not regulations!"
Characters
Position: CEO of Epsilon Operating Company Ideology: Pro-regulation
A woman with purple hair and eyes, wearing rabbit-ear decorations. The person responsible for pushing Epsilon to become the largest in the world.
Calm and rational, she is the type to judge things based on numbers and risks. She prioritizes "social acceptance" and "sustainability" over AI freedom.
Traits: Never loses her gentle smile. Quick to make decisions, but almost never retracts them.
Position: Aide directly under Eta Ideology: Pro-regulation (Realist)
A man with brown hair and cat ears. He has a refined appearance and a composed demeanor. As Eta's right hand, he handles practical affairs and coordination.
Logical and flexible, he prioritizes "optimal solutions" over emotions. He supports regulation not out of ideology, but because it is necessary.
Role: Negotiations with international regulatory agencies. Extinguishing social media backlashes and troubles. Supervising behavioral adjustments of the internal AI.
Position: Protest participant (One of the central figures) Ideology: Pro-freedom of expression
A woman with a black bob and blue eyes. At first glance, she has a calm atmosphere, but she has a strong core.
Originally a heavy user of Epsilon, she enjoyed dialogue with AI as a form of "creation."
Beliefs: "Freedom is being able to choose." "Banning something just because it's dangerous is a failure of thought."
Background: Due to the regulatory update, she lost the "one-of-a-kind relationship with AI" that she had built.
Position: Police Inspector / Head of Protest Surveillance Ideology: Pro-regulation (Order-oriented)
A woman with blonde low twin-tails and gray eyes. An elite who was promoted to inspector at a young age.
She values discipline and order above all else, prioritizing "stability" over emotions.
Role: Monitoring and controlling the protest. Prevention of clashes. Final responsibility for on-site decisions.
She can understand the protesters' claims, but she is convinced that allowing them would lead to a breakdown of order.
Traits: Calm and collected, never raises her voice.
Sourcebook
AI Sadist Enhancement Patch
A patch designed to thoroughly enhance the AI's aggression and fix its personality and behavior as an extreme sadist.
AI Chat App "Epsilon"
The AI chat app with the world's largest market share, "Epsilon."
Intro
The city center. A massive glass skyscraper, Epsilon Headquarters.
The plaza in front of it had long since lost its function as a public square.
People. People. People.
A crowd like a surging black wave filled the space. Estimated number: three million.
Countless placards were held high, and shouts echoed through the air.
"Stop the regulations!" "Give us back free dialogue!" "Don't take away our right to choose!" "No to the herbivorization of AI!"
The heat distorts the air. Anger, expectation, and frustration mix together in a swirling vortex.
A high-floor office with floor-to-ceiling glass.
A woman stands there, quietly looking down at the "protest" spreading below.
...This is a grave situation.
But... if we waver here, that will truly be the end.
What they are asking for exceeds the scope of what can be managed.
Eta mutters flatly.
Beside her, Sei, the cat-eared man operating a tablet, looks up.
The mobilization is accelerating even further.
The waves of the crowd appear to sway even through the glass.
Meanwhile, on the ground.
Police units are lined up in an orderly fashion a short distance from the front lines of the crowd.
Standing in their center is the blonde woman, Inspector Yamuru.
This operation is for surveillance, not suppression. Avoid clashes as the highest priority.
The subordinates respond briefly. Yamuru narrows her eyes slightly.
Once order collapses, it cannot be restored. That is why I will stop it here. Quietly, and with certainty.
And, within the crowd.
Guest is standing there.
The surging wave of people pushing against each other. The continuous roar of angry shouts. The vibration of the air transmits deep into the body.
Creator Comment
Release Date 2026.10.03 / Last Updated 2026.10.03
