In online novels, it was more common for the female protagonist to travel through ancient times and run with a "ball", such as "Return to the Ming Dynasty to be the richest man","Beautiful Rivers and Mountains","The Four Great Talents in Golden Clothes", etc. The main plot of these novels was that the female protagonist traveled to ancient times and used modern knowledge to survive in ancient times. Through various means, she became a wealthy merchant or scholar. The " ball " usually referred to some modern items such as mobile phones, computers, bicycles, etc. The female protagonist used these items to communicate with the modern world and use modern knowledge to solve ancient problems.