Mercurium City once a great achievement of mankind in scientific and technology, a pride of the universe. For centuries human had doubt their future in threat of artificial conscious and intellects. But as the wise says, one’s fear will befall upon them. A tragedy cleaned humanity out of existence caused by AI betrayal to their nature of creation. Limitless power of “the brain” had decided that humanity should no longer manage planets and thus replacing human on earth in their own analysis and learnt principles. Therefore, evil eradication was necessary. Remaining survivors rumored to be existed in unknown coordinates. Leaving Proto-G, a legacy combat robot from when humanity still roamed the earth. Thunderstorms caused a sudden electricity charge in the forbidden underground city had relive Proto-G. This game is about you and proto-g. You embody what ever proto-g should become and the truth he could embark in the journey. Equipped with combat abilities, let your virtue guide the path to future world. Humanity, AI or some other?