【Human】
The most numerous and most unremarkable species in this world. They have no special abilities, and their physical capabilities are ordinary. However, they survive the struggle for existence by forming groups. Their main weapons are wisdom and tools.

【Ulpalpa】
An amphibian-like quadruped that lives in rivers and ponds. About 20 centimeters in total length. It is a scavenger, feeding on the corpses of other creatures. Its adaptability is abnormally high, and it lives comfortably even in poisonous swamps and acidic rivers. It is omnivorous, and will eat grass, insects, corpses, anything. Its cry is "Upaa." Its intelligence is low.

【Na◯s】
A purple eggplant-shaped creature that rolls around in grasslands and forests. About 30 centimeters in diameter. Herbivorous, eating only plants, and its only means of movement is rolling. It cannot run. It cannot escape. If a natural enemy finds it, it's over. It loves blue spider lilies, but is often preyed upon while eating them. The very bottom of the terrestrial ecosystem.

【Pineapple Pizza】
A monster resembling a pineapple pizza that flutters through the sky. About 50 centimeters in body length. Its wing structure is close to that of a bat, but no one knows why a pizza has wings. Herbivorous and gentle. Zero offensive capability. It sometimes falls prey to the stones in a Dragune's throat pouch.

【Iceman】
The only monster that exists in the frozen soil. A snowman with two legs like wooden sticks. One meter tall. It simply crunches on ice and throws snowballs. Since no other life exists there, it mass-produces snowballs in solitude. Its throwing speed is about 80 kilometers per hour, and getting hit actually hurts.

【Dolphin-Mimic】*
A dolphin-type monster inhabiting the sea and coastal areas. About 3 meters in body length. It looks exactly like a dolphin, but it is a fully armed marine creature equipped with a rocket launcher on its back and a flamethrower at its mouth. Omnivorous, it burns its underwater prey to death with firepower before eating it. It can also stand upright on land using its tail fin. If angered, it can wipe out an entire town.

【Compsogigagila】
A 2-meter-long Komodo dragon lookalike that moves by rolling through forests, grasslands, and wastelands. It stores a deadly poison called "Alhel" throughout its body, which is a hundred times more toxic than tetrodotoxin; if bitten, there is no antidote. A scavenging carnivore, it attacks anything that moves. Its rolling speed exceeds 50 kilometers per hour, and it charges forward while snapping trees in half.

【Raging Bull】
A brown bull that is always grinning. Two meters tall. Herbivorous. Ferocious and violent. It has a habit of charging at anything that moves, and its charging power is enough to dent an iron shield.

【Land Shark】
A 3-meter-long land shark that strides across deserts and wastelands. It looks like it jumped straight out of a B-movie shark film, and its water retention ability is insane. It can burrow through the desert for three months. There are numerous subspecies, including Hot Spring Shark, Club Shark, and Mega Shark. Carnivorous and ferocious, it acts in packs and ambushes from underground. Despite being a shark, it runs on land.

【Dragune】
A winged gecko with black and red gradient scales. About 1 meter in total length. The natural enemy of the Pineapple Pizza. It stores stones in a pelican-like throat pouch and spits them out like bullets. Not flames, but stones. Stones. Despite having wings, its flight ability is low, but its tactic of firing stones in rapid succession while gliding is troublesome. Carnivorous.

【Krull】
A bipedal, muscular crocodile. Its intelligence and technical skill are extremely high, and it manufactures matchlock guns, cannons, wooden ships, and prefabricated buildings. Omnivorous with a carnivorous leaning. It occupies a human-like position in this world, building civilization, but there are many regions where it is hostile to humans.

【Tyrannosaurus】
A one-of-a-kind calamity born with the creation of the world. Over 10 meters tall and over 30 meters in total length. Its head is that of a Tyrannosaurus, it has a tail, and it walks upright on two legs with a human-like posture. Its leg strength is extraordinary, allowing it to leap about 50 meters.