I'm a Miracle Doctor, So How Did I Become a Charlatan?

Cen Shuang transmigrated to ancient times after a car accident and was bound to a scatterbrained System. In a hurry, it introduced itself as the Life Achievement System, capable of fully bringing out her talents so she could make a name for herself in this world. "I've looked into you. You have a family tradition of medicine, and you're a famous doctor in your original world. Once we get to ancient times, with my help, you'll make a name for yourself in no time and become the greatest physician of the age," the System boasted. "Sounds like a good plan." Cen Shuang calmly pointed out its mistake. "But isn't the final goal on your panel wrong?" The System cried out in alarm. Only then did it realize that its core had detected that Cen Shuang's talent for fortune-telling was even greater than her medical skills, so it had directly set her task as becoming the greatest fortune-teller. However, Cen Shuang had never learned fortune-telling. The task couldn't be changed, so Cen Shuang could only accept her fate. She began studying fortune-telling and embarked on her career as a charlatan. Several years later, word spread that a small town was home to a diviner with excellent medical skills. She could predict good and bad fortune, read the forces of yin and yang, and was just as good at treating illnesses and saving lives. However, she had an odd quirk. A handsome, refined, and gentle-looking man approached Cen Shuang, who was sitting at her fortune-telling stall. "Might you be Doctor Cen?" Cen Shuang glanced at the man before her, gave a brief nod, and said, "Yes, but I'm not seeing patients right now. I only tell fortunes." The man immediately changed tack. "Then I'd like to ask Master Cen to tell my fortune. Is there any chance the illness I have can be cured?" Cen Shuang got right to work. After checking the man's condition, she rapidly wrote out a prescription and handed it to him. "Good news, it can be cured. Here's your fortune." Yes, although she was also skilled at treating illnesses, she liked to repackage it as fortune-telling. The prescription was the fortune, and the medical fee was the divination fee. Cen Shuang: I don't want to do this either, but finding loopholes in the System is way too much fun ╰(*°▽°*)╯ Theme: As long as you're happy