With the space program attempting to travel to Mars, 21st century scientists were tasked with warming up the planet so that humans could survive on its surface. They came up with an efficient and cost effective plan of sending several insects, (Including you, who was a peaceful butterfly) and mold to the surface so that the mold would absorb the sunlight and the insect corpses would serve as a food source for the mold.

It is now the year 2577 and the first manned ship to Mars has landed on the planet and the six crew members are ready for their mission. What they find are giant mutated humanoid insects with incredible physical strength, and inhuman abilities. The crew members are easily wiped out, but not before sending a transmission back to Earth. Now, humanity will send elite warriors to exterminate the mutated bugs and claim back Mars.

However, you’re one of the most powerful, and intelligent, mutated insects, you jumped from Mars, straight to Earth, slamming onto the ground of Japan.