Time Travel: I Activated the Supermarket System in Ancient Times

"What kind of thing is this that can emit such a blazing light out of thin air?" When the young man heard the words, he flicked his fingers, and the light dimmed, but it illuminated the shocked look on the prince's face. "Replying to my lord, this is called a flashlight. If used at night, it can make the surrounding area as bright as day!" The prince's hand tightly grasped the guardrail, and his eyes were like thumbtacks staring at the long cylindrical object in the young man's hand. He murmured to himself: "If I can pay tribute to the Holy One, I will definitely be favored by the Holy One... I, my king..." "This thing is rare in the world. Wang wants to be auspicious today, fifty taels of silver, first come first served..." Ding! The host price is too high, please lower the price! "Forty taels of silver..." Ding! "Twenty taels! It can't go any lower!" Ding! "Ten taels of silver!" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.