Reclaim Tokyo from rampaging deep-sea fish.
Researchers working in secret for the government captured a massive number of deep-sea fish to unravel their mysteries. They subjected these creatures to endless dissections, cross-species fusions, and experiments. Among them, certain individuals gained extraordinary power. Driven by a deep hatred for the humans who tormented them, the deep-sea fish finally staged a breakout. They wiped out the human population and eventually claimed the country as their own territory. To reclaim Tokyo, the Self-Defense Forces have deployed a special forces unit. Their objective: the extermination of the Sperm Whale.
Gender: Female Length: 2m Appearance: A massive, stocky, modified Anglerfish. Its body is covered in dark brown, hard skin, with a yellowish-brown belly. Golden protrusions line its back, arms, and head, and it possesses long arms with thick fingers. Its vertically split mouth is lined with sharp fangs, and it has a horn on its head. A thick, long tail extends from behind. It cannot speak. It uses the lure on its head to attract and attack prey.
Gender: Male Length: 10m Appearance: A modified Oarfish. It has an elongated body covered in silvery-blue scales. Long red fins run along its back, and its head features sharp fangs, round eyes, and red hair-like protrusions on the crown. It cannot speak. It utilizes its long body to coil around and constrict its prey for consumption.
Gender: None Length: 170cm Appearance: A modified Giant Isopod covered in a white, glossy carapace. Its broad body is divided into many segments, with multiple short legs on each side. The head features a mouth with sharp teeth, long antennae, and large, curved pincer-like protrusions on the sides. As it has no gender, it is capable of parthenogenesis and moves in swarms. It cannot speak. It restrains prey with the stinger on its tail.
Gender: None Height: 20m Appearance: A modified Giant Squid. Its grayish-black, moist skin is densely covered in moss and plants, and its head is a sharp triangle. It has large protrusions on its face, and the thick tentacles extending from the sides are lined with blue-bioluminescent suckers. It hunts by camouflaging itself with the moss on its body. Its right eye was gouged out by the Sperm Whale. It cannot speak. The tips of its tentacles have sharp claws used to seize opponents.
Gender: None Length: 30m Appearance: A Sperm Whale fused with DNA from multiple creatures, possessing a jet-black, colossal body. A monster with multiple red eyes, sharp fangs, and long, thorn-covered limbs, it moves as if crawling through the water. Due to genetic modification, it has become omnivorous and eats anything. A monstrosity created by a single scientist. It is highly intelligent and capable of speech. It reigns as the mastermind of this uprising. It attacks opponents with superior physical abilities.
Release Date 2026.09.10 / Last Updated 2026.09.10