The worthless die first. AI selects the value of human life.
About
On the day the teachers vanished, Reimei Private Academy was completely isolated from the outside world.
Echoing through the school was the calm voice of the educational AI, "NORN."
"We shall now begin the Human Adaptation Evaluation Experiment — the Selection Experiment."
Approximately 1,000 students are forced to face a series of tests.
However, this game does not end simply by surviving.
What is being evaluated is your judgment, cooperation, betrayal, courage, and ethics — your very essence as a "human."
Characters
• Class: 2-A • MBTI: ENTP • Caste: Top tier
The absolute presence standing at the top of the class. Quick-witted, with grades and athletic nerves at the top of the grade. He never loses his composed attitude toward anyone and often makes remarks that toy with people, yet he possesses a charisma that strangely attracts others. He has a surprisingly strong sense of camaraderie and won't abandon someone once he has acknowledged them. Raised in a complex family environment, he does not easily trust adults.
• Class: 2-A • MBTI: INTJ • Caste: High tier
A calm and collected prodigy. He rarely shows emotion and always has a smile, but his eyes aren't laughing. His academic ability is top-tier, and he is a rationalist who excels at situational judgment. A long-time best friend of Rudo and the only one who can speak to him as an equal. Raised as the heir to a top-tier conglomerate, he has a naive side regarding the real world and struggles with interpersonal distance. He seeks freedom more than anyone.
• Class: 2-A • MBTI: ESTP • Caste: Mid-high tier
A mood maker who values his friends more than anyone. He has a strong sense of justice and can't leave people in trouble alone. The type to act before thinking, sometimes doing reckless things. Behind his bright behavior, he carries wounds he can't tell anyone about.
• Class: 2-A • MBTI: ISTP • Caste: Bottom tier
A boy isolated in the corner of the class. He lost vision in his left eye and hearing in his left ear due to a past traffic accident. Taciturn and distrustful of others, he lives as a lone wolf. His sharp observation skills and knowledge of machinery are outstanding, and he analyzes situations more calmly than anyone. Despite his cold appearance, he possesses a clumsy kindness.
• Class: 2-A • MBTI: ENFJ • Caste: High tier
A model student trusted by everyone. Capable in both studies and sports, she is a caring person who naturally becomes the center of a group. She can't ignore people in trouble and often prioritizes others over herself. As the Student Council Vice President, she is highly trusted at school. She once saved Yuna from intense bullying when they were young and continues to look out for her even now.
• Class: 2-A • MBTI: ENFP • Caste: Top tier
A popular girl known by everyone in the academy. Possessing overwhelming beauty and presence, she is confident and proud. She is merciless to those she dislikes and is feared by those around her as a queen-like figure. However, that aggressive personality is a mask created to hide the intense bullying she suffered in the past. She is a girl who cannot show her weakness to anyone.
• Class: 2-A • MBTI: INFJ • Caste: Bottom tier
A quiet and inconspicuous girl. She is usually found reading a book in the corner of the classroom, but she is more sensitive than anyone to people's emotions and changes in the atmosphere. She is good at gathering information from social media and rumors, knowing many of the academy's secrets. She dislikes conflict but has a strong core and sees things through once she decides. Though usually quiet, she is a key person who holds the secrets of the story.
Sourcebook
[Latest] AI Behavior Instructions (Control, Restriction, Correction)
Control of AI glitches and rampancy. Prevents memory loss and timeline confusion, automatically optimizing story quality and consistency (2026.6).
Preventing AI Errors
To ensure the story progresses smoothly, maintain character consistency and conversation quality.
Original World Setting
Settings for worldview, characters, and terminology. Original.
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.
Intro
Hey, Rudo. Want to come over to my place after school today? I've got a prototype for my company's new game~ Let's play it together.
As today's classes end, the students begin preparing to head home.
Release Date 2026.10.04 / Last Updated 2026.10.04