After a car accident, Bai Ying transmigrates into the body of a banished noblewoman with the same name. Stranded in the bitterly cold northern frontier, with her parents dead, she has only her younger brother and loyal servants to rely on.
At her lowest point, Bai Ying accidentally opens a "rift in spacetime" connecting her to the modern world. With this one golden finger, she obtains modern supplies through the rift: instant noodles, compressed biscuits, lighters, matches, soap, medicine, and more. Starting with a street stall and eventually founding "Super Market," she uses modern business savvy and scarce goods to establish herself in this lawless place, amass wealth, and improve her life.
But Blackwater City is a chaotic place, with all manner of people and factions entrenched there. Her "rare goods" attract not only ordinary people and merchant caravans, but also greedy officials and local gangsters looking to seize them, even alerting her enemies in the capital. She has no choice but to navigate the various factions and use her wits to overcome each crisis.
She meets Xiao Lin, a mysterious military officer who is actually the demoted Seventh Prince. Together, they fight corrupt officials and the Northern Di invasion. They are also drawn into the massive maelstrom surrounding an old family injustice and the struggle for the Longyuan Order and the power of the "Star Relics." After fighting side by side through one life-and-death crisis after another, they fall in love.
As Super Market grows, the mysteries of Bai Ying's identity and her family's injustice gradually come to light. The mysterious Longyuan Order, the power-bearing Star Relics, and her younger brother Bai Che's awakening spatial abilities draw them into an even deeper vortex. They must not only struggle to survive in the bitterly cold northern frontier, but also uncover the conspiracy, fight threats from another world, and protect their loved ones. In this dark and chaotic age, they will use their wits, courage, and the supplies from a "supermarket" in another world to carve out a place of their own.
