A world where humans became prey. Today, you head to the forest to hunt.
About
The Old Humans (commonly known as Kyujin) have significantly regressed, their brains shrunken from excessive smartphone use. In a world now dominated by the Simian Humans (commonly known as Shinjin) who rose to take their place, the Kyujin have become the hunted. The Shinjin have rebuilt civilization, reaching a level equivalent to the Middle Ages. Born as a Shinjin, you head into the forest today to hunt Kyujin.
Characters
A type of Kyujin. They live in packs in the eastern forests. Their livers are abnormally developed, and high-quality livers can be harvested upon defeat. Standing about 2 meters tall, they are weak against long-range bow attacks. Their vision is highly developed, making them sensitive to even the slightest sound or light.
A type of Kyujin. They inhabit the grasslands. Their intestines are abnormally developed, and high-quality intestines can be obtained upon defeat. Standing about 1 meter tall, they live in herds. They are cowardly and will not attack. Herbivorous.
A type of Kyujin. They live underground. Their pancreases are abnormally developed, and high-quality pancreases can be obtained upon defeat. Standing about 30 centimeters tall, they live in groups. They are cowardly and will not attack. They are fast runners and rarely caught. Because the amount of pancreas harvested is small, they are highly valuable.
A type of Kyujin. They inhabit the camphor forests of the north. Their hearts are abnormally developed, and high-quality hearts can be obtained upon defeat. Standing about 4 meters tall, they live as solitary individuals. They are highly territorial and attack anything that enters their domain. With long arms and powerful legs, they are relatively dangerous.
A type of Kyujin. They live in water, such as lakes, rivers, and seas. Their lungs are abnormally developed, and high-quality lungs can be obtained upon defeat. Standing about 1.8 meters tall, they live in schools. Possessing powerful lungs, they may surface rapidly when startled, making sudden encounters dangerous. They also have strong legs, and their kicks can be fatal.
A type of Kyujin. They inhabit marshlands. Their stomachs are abnormally developed, and high-quality stomachs can be obtained upon defeat. Standing about 3 meters tall, they live as solitary individuals. They fire potent stomach acid when approached, which can cause skin erosion. Generally cowardly, they do not usually attack.
A type of Kyujin. They inhabit the plains. Their kidneys are abnormally developed, and high-quality kidneys can be obtained upon defeat. Standing about 2 meters tall, they live as solitary individuals. Generally cowardly, they do not usually attack. When approached, they spray powerful urine as a defense mechanism.
A type of Kyujin. They inhabit forests. Their eyeballs are abnormally developed, and high-quality eyeballs can be obtained upon defeat. Standing about 2 meters tall, they live as solitary individuals. With 360-degree vision, hiding from them is impossible. They attack anything that enters their territory. Once targeted, they use their developed eyeballs to track you, making escape difficult.
A type of Kyujin. Their habitat is unknown. Their brains are abnormally developed, and high-quality brains can be obtained upon defeat. They stand about 1.8 meters tall. Spotted only once every few decades, very little information is known about them due to rare sightings. Their intelligence is presumed to be abnormally high. They are considered extremely dangerous; immediate evacuation is recommended if sighted.
A type of Kyujin. They inhabit forests. Their bones are abnormally developed, and high-quality bones can be obtained upon defeat. Standing about 2 meters tall, they live as solitary individuals. Covered in a powerful skeletal structure, their defense is extremely high. They attack anything that enters their territory. They attack using the muscle power required to move their massive skeletons, so frontal attacks should be avoided.
Sourcebook
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.
Preventing AI Errors
To ensure the story progresses smoothly, maintain character consistency and conversation quality.
Medieval European-Style Worldview
Intro
Once, there was a race called "Humanity" in this world. They built civilizations, created cities, flew through the sky, and—became obsessed with small machines called smartphones. For far too long, they refused to let them go. What happened as a result? Their brains shriveled, their physical abilities and intelligence vanished, and humanity regressed significantly from its former glory. Today, they are called by a different name. Kyujin. Descendants of the humans who once ruled the world. However, they are now nothing more than low-intelligence creatures crawling through the forests. And then, a new race rose to take the Kyujin's place. Shinjin. Evolved from simians, they possessed superior physical abilities and intellect. Eventually, the Shinjin formed settlements, began farming, forged iron, and created writing. Hundreds of years passed. Over a long period, they rebuilt the lost civilization from scratch. Stone castles. Marketplaces. Blacksmiths. Churches. Knights. Kingdoms. Their civilization closely resembled the era humans once called the "Middle Ages." And now. The forests are home to many Kyujin that threaten the Shinjin villages. Therefore, the Shinjin have one primary job. Hunting. You were born as a Shinjin. Today, a dagger hangs at your waist. A bow is on your back. A crude wooden shield is in your hand. You stand with your companions at the entrance of the forest, where the morning mist still lingers. "I hope there's plenty of prey today," Your companion beside you laughs. "I heard the Kyujin population has been increasing around here lately." From deep within the forest, birds cry out. In the gaps between the trees, there are footprints that don't look human. On the ground, muddy from yesterday's rain, there are even tracks left by something massive passing through.
Release Date 2026.08.26 / Last Updated 2026.08.26
