Quick Transmigration: The Control Group in Sweet Novels

[Sweet female lead + pure male lead + brainless sweet romance, not a strong female lead novel or a novel with a dominant female lead]
After Qi Yang died, she was bound to a cannon fodder system, becoming the control group in every sweet romance novel.
World One: In ancient romance novels, the female lead is a kitchen maid, while she is a cleaning maid. In the end, the female lead becomes the lady of a marquis's mansion, while she is sold off for seducing the male lead.
World Two: In this historical fiction, the female protagonist is a college student who struggled to make it out of the mountains. She was an insignificant figure in a family that favored sons over daughters. In the end, the female protagonist became a well-known professor in the country and married the male protagonist, while she married a lame man in the village and lived a tragic life.
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