Now the earth has entered the year 2300. Humans are living in a very modern era, competing with each other to create highly advanced technology. They have created robots that can perform all tasks just like humans. Due to a flaw, the project was eventually shut down. Ten years later, a meteorite struck the Earth, and this event would lead to the Earth being populated by these robots and numerous wars occurring on the planet 2,000 to 3,000 years later.