Lu Qining and her blind date are in a car accident. When she opens her eyes, she's become one half of a pair of twin cannon-fodder bootlickers in two stories set in the 1970s.
Their biological mother "accidentally dies" after falling into a river, and their stepmother moves in with the stepsiblings who are the original stories' hero and heroine.
She deliberately spoils their frail older brother until he's useless, turning him into a notorious good-for-nothing hooligan in and around the village.
She PUA's their naturally strong twin into becoming a workhorse who keeps her head down and works, with a personality no one likes.
She also deliberately grooms the twins to become the stepsiblings' loyal dogs and foils.
The twins have both transmigrated, and they know what happens in the books. Naturally, they won't be cannon-fodder bootlickers anymore.
Now the cool, aloof genius has become a shameless hooligan, while the cheerful, tough girl has become a withdrawn pushover. Their personalities are now the complete opposite of who they used to be.
Lu Qining doesn't want to act like a pushover, and Shen Qingshao just can't pull off being a gregarious hooligan.
They come up with a plan: from now on, you take my personality, and I'll take yours.
So Lu Qining becomes a lazy village bully who gossips from house to house and spends every day watching the drama and punishing evildoers. Shen Qingshao, meanwhile, becomes a taciturn young intellectual who loves inventing things.
To hell with being cannon fodder and stepping stones. We're going to be the villains who turn the tables and take charge.
The siblings have brains and brawn, and they tear the mask off their hypocritical stepmother and the stepsiblings favored by fate.
They break free from the tragic fate written for them, and their lives just keep getting better!