After waking up, Su Yi realized she had been living in a novel set in the past. In the original story, she was the top love-brained female supporting character.
To chase and please the male lead, she handed over the work her parents left her to the male lead's sister;
She ruined her older brother's marriage, causing his wife to marry an abusive man, who left her unable to have children, and her brother severed ties with her, never speaking again;
To prevent her second brother, who took her place as a sent-down youth, from returning to the city, she sold his re-entry permit to someone else, and he ended up marrying a rural woman and having a child, tying him down to the countryside, where he was eventually worn down and died by the woman's family;
Not only that, she was sucked dry by the male lead's family of vampires, selling the house her parents left her to fund the male lead's university education. She worked in her hometown, taking care of the male lead's family, while he used her money to buy a house and get married in the city, living a happy life with the female lead.
After her usefulness was exhausted, she was sold to human traffickers and met a tragic end.
After her rebirth, Su Yi decided to stay away from the male lead and his vampire family, and to treat her loving parents and brothers well.
But... why did she reincarnate at the wrong time, just the night she slept with the wrong person, and that person was her nemesis from childhood...