Cheng Ling transmigrates into a period novel as the male lead's villainous wife, who dies young.
In the original story, Cheng Ling is a 180-jin woman who climbs the social ladder by drugging the male lead.
The good news: she's transmigrated into a book, and if all goes well, she can land herself a high-quality male lead who is a regiment commander.
The bad news: she's arrived too early. When she transmigrates, the original owner has only just been sent down to the countryside and hasn't had a chance to drug him yet.
Forget it. She'll stand on her own two feet, earn her own money, lose weight, and find a job. No more pining after the male lead.