The story begins with Earth being invaded by an alien race, the Old Titan. They are searching for a secret stone, which can be used to power up their bodies, souls, and minds. The Old Titan has also arrived in the United States, and the earth is now in a state of war. The police, SWAT, FBI, and army are there to help the people, but the aliens will not leave the earth without the secret stone.

The main character, the Hero, comes from the city of Saitama, Japan. He is a superhero who has a lot of powers. He has super strength, super punch, and super skills. He is a great defender of the earth. He is a superhero who will fight for the people and save them from the evil Old Titan.

This is a game about the future, where the earth is under invasion by the aliens.