The Strongest Equipment Dealer in Another World

I really traveled through time and became the owner of a small equipment mall. I have a system, and she said she wants me to be number one in the world. I have an apprentice, a strange girl with rabbit ears. She said that she once lived in a place called Guanghan Palace. I have an employee who says he wants to be a master who is unique among ten thousand. His name is very ordinary, Long Aotian. I have a girl who said that she broke off her engagement to her fiancé. The fiancé left behind a sentence of "Thirty years in Hedong and thirty years in Hexi. Don't bully the young man after being poor." Three years later, he defeated her and now he has become an outstanding alchemist. She wants revenge. I thought I might have offended the children of the plane, so I decided...