My Supermarket Pass Future Battlefield

[Science Fiction + Time Travel + Fantasy + System + Unlimited Streaming] Fang Fang, who entered a first-class university in a prosperous city after fighting in the examination room. After graduation, he originally had high expectations for the workplace, but he lost in capital and power and had no choice but to find a job in a supermarket to make ends meet. On New Year's Eve, Equation, who was still tallying money, unexpectedly obtained a piece of quantum dark matter silicon-based life form from a pre-advanced civilization - Dark Spirit, and Dark Spirit can actually open a space-time portal to the present and the future. What happens in the future world? Can Equation and Dark Spirit work together to change the destiny of the future battlefield and real society? Everything is unknown.