After I Transmigrated into a Book, I Got Rich by Crushing Scum in the ’70s

What should you do after transmigrating into a period novel as the female supporting character?

Lin Qiao says, just go for it!

What if your awful stepfather tries to send you to the countryside in someone else's place?

Lin Qiao: I can go to the countryside, but give me back the job and the house!

What if the green-tea heroine frames you for cheating on an exam?

Lin Qiao: ??? Sis, I just turned down an early admission offer.

What if a mama's boy tries to ruin your reputation?

Lin Qiao: Good. That thing could use a bit of damage.

She torments scumbags and dishes out face-slapping to green-tea girls. Lin Qiao thinks life as a sent-down youth is wonderful beyond words. It's just that the sickly-looking antagonist seems so pitiful that she can't help feeling softhearted and protecting him.

But one day, Lin Qiao, who firmly believes her little antagonist is a weak, pitiful, sickly beauty, sees him threatening the male lead with a vicious, obsessive look.

Lin Qiao: ???

Weren't you supposed to be dirt poor, with both your parents dead, your grandfather exiled, and your own health hanging by a thread?

P.S. The setting in this story is entirely fictional.