Transmigrated as the Supporting Female Character: Does My Bad Luck Have a KPI?

[Transmigrate into a Book] [Female Side Character] [System] [Alternate World] [One-on-One Romance] Ye Wuyu just finished paying off her mortgage and wanted to relax with a novel before bed. When she woke up, she found she'd become the frail, sickly female side character in the book, one who dies before the story even ends!

Ye Wuyu is miserable. She spent the first half of her life working like an ox to pay off her mortgage, only to transmigrate into a book before she could even get comfortable in her own bed, becoming a disposable side character who won't live to see the ending! As she enters the book, Ye Wuyu also gets bound to a Jinx System. As the name suggests, anything bad she says will come true, and she has to jinx something at least once every day or the System will kill her.

Ye Wuyu sighs to herself: How can anyone be as unlucky as me? Whatever happens, staying alive is the priority. Then she can figure out how to return to the real world. But can she still go back?