Bound to a Department Store: Walking Sideways in the End of Ancient Times

(Heavy rain and floods, extreme heat, heavy fog, acid rain, extreme cold, earthquakes, tsunamis.)... Li Jing, a senior social worker in the 21st century, worked hard all year round for her body and mind, and finally died suddenly after working overtime all night. Once she traveled through time, she became a poor orphan with no family in the Great Yan Dynasty. The game started on Hell Difficulty, and before she had time to adapt to her new life, the heaven-defying system was suddenly bound - an exclusive all-purpose department store! But what follows is a cruel countdown to the end of the world: with only ten days left, the end of the Great Yan Dynasty will come to an end! Fortunately, the food area on the first floor of the department store is unlocked at the beginning, with unlimited supplies and permanent freshness, so you can eat and drink without worries. But for floor unlocking and material upgrades, only gold, silver, jewelry, and antique jade are accepted! When the apocalypse comes, she can open a physical department store, open the door for business, and monopolize the entire network's survival supplies. Food to satisfy your hunger, daily convenience, medicine to save lives, weapons to protect yourself, building materials to build homes, seeds to open up wasteland, unlock all-purpose materials layer by layer. A dimensionality reduction attack on this era! The world spends all their wealth to get a bite of food, a dose of good medicine, and a piece of warm clothes, but Li Jing holds the trump card of dimensionality reduction, exchanging materials for treasures, and upgrading the building layer by layer. Natural disasters overwhelm the world, and the world is in chaos. When everyone is struggling to survive in a desperate situation, she is the only one sitting on the only pure land in the apocalypse. With life in hand, she climbs to the top step by step, running rampant and sideways in the ancient apocalypse!