The Feisty Sister of the 70s

When she wakes up as a doomed side character destined to die young, her toxic family tries to marry her off to an abusive man for cash. Refusing that fate, she fights back fiercely, grabs her dog, and flees to the city to find her loving brother. Determined to rewrite her family's tragic destiny, she builds a business and shields them from harm—only to catch the eye of a brilliant, reclusive scientist. Can she change their future without losing her heart?