After Reincarnating as a Villainess, I Got My Happy Ending with the Cunning Antagonist

Xie Yingyu transmigrates into a mystery novel as the obsessive, lovesick fiancee of the male lead.

She is a wicked woman who has just poisoned the male lead but has not yet had a chance to enjoy it. The female lead knocks her unconscious with a stick and sends her to her brother's bed. Her reputation is about to be ruined, forcing her to leave the capital. After that, she will turn thoroughly evil, target the leads at every turn, and kill wildly.

Fortunately, Xie Yingyu comes to her senses halfway through and awakens her memories.

Six months later, her father the prime minister will be beheaded, her fake brother will become a real eunuch, and she will die miserably on the road to exile, with her entire clan doomed. The male and female leads will seize all the family's assets, recruit troops, rebel, and take the throne.

So Xie Yingyu acts decisively. She takes her refined fake brother and flees in the middle of the night, spending the whole night detoxifying him.

But the male and female leads insist on hunting the Xie family down, waiting to have them arrested, exiled, and exterminated.

Xie Yingyu breaks off her engagement and shifts the blame, refusing to repeat the old story. She digs up their dirty secrets and uses wrongful convictions to shut them up.

Xie Yingyu declares: There is no way I'm getting exiled. If you want revenge, then I'll defeat you where you're most proud of yourself.

From then on, Xie Yingyu spends her days poring over old cases, sharpening her blade against the male and female leads.

Her handsome husband, Xie Wuze, handles the cleanup and passes her the knife.

A year later, Xie Yingyu is still alive, her clan is intact, and her official rank keeps rising. She even gets the entire circle of wealthy young idlers competing to outdo one another.

The male and female leads' revenge plans are delayed again and again. They grind their teeth in frustration, but there is nothing they can do. After some discussion, they decide to drive a wedge between the families. Unable to cause trouble for the young idlers, they go after their parents instead.

To the other powerful families, this looks like ambition, and they all join in to offer their support.

In the end, the male and female leads realize they picked the wrong enemy. Their plans fall apart, and they end up as humble drudges.

Strong heroine + wish-fulfillment + super sweet romance