I Mistook the Villain for a Cultivation Furnace

(Socially anxious imperial princess x yandere antagonist, drafting)

The socially anxious Yin Fanxue transmigrates into the role of a vicious supporting villainess. Her mission is to torment the original protagonist, Lou Boshang, in every way possible, driving the chosen one to become corrupted and kill everyone who wronged him.

Using her power as an imperial princess, she frames him, turning the arrogant protagonist into someone of lowly birth, a mere cat swapped for a prince. The ruler is furious, and the world laughs at him.

His cultivation is crippled, his bones and sinews broken, and he is imprisoned in a water dungeon before being dragged to the Fengqi Judgment Platform.

Snow blankets the prayer flags. The young man's long hair hangs loose, his bloodstained face as beautiful as a mountain spirit's. Looking down at him, Yin Fanxue says, "I want you to be my cultivation furnace."

She tramples a flawless bright moon into the mud. She knows Lou Boshang must hate her to the depths of his soul.

But her missions are far too difficult for someone with social anxiety:

Mission One: Insult him and leave a mark on his body.

Mission Two: Use a secret identity to toy with his feelings, save him, then destroy him.

Mission Three: Drain his cultivation and give him a love poison.

Yin Fanxue's scalp tingles as she silently screams into her hands. She can barely get a word out, so how is she supposed to insult anyone? And the missions that follow are even more vicious.

She completes her missions with a dead look in her eyes,

watching Lou Boshang's corruption level skyrocket beyond the limit,

then pushes him off a cliff after draining his cultivation completely.

But when the tyrant Lou Boshang returns, treading on white bones and scarlet blood, he doesn't stab her through the heart.

He binds her with an Immortal-Binding Rope instead.

Imprisoned on the lotus dais in his golden palace, she assumes Lou Boshang will take revenge by giving her a taste of her own medicine.

Then the System tells her two terrible things:

First, Lou Boshang is the main antagonist, not the protagonist. She got the wrong person.

Second, Lou Boshang was already a wolf in sheep's clothing. The meter that went off the charts wasn't his corruption level, but his enjoyment level :)

Only then does Yin Fanxue learn that Lou Boshang looks like Guanyin but has a snake's heart, a demon who feeds on the suffering of others.

She knows that the more he kills, the more gently he smiles.

She also knows this madman is addicted to her. When he faces her, his body becomes sensitive, and he says excitedly:

"How about I send you to hell this time, then give you ecstasy?"

No thanks. I've botched every mission, so I'm going to fake my death and go home.

*

Later, the System begs her to return and stop Lou Boshang from destroying the world.

She discovers that her name has become taboo across the land.

Lou Boshang once built towering structures reaching to the heavens, hoping to become a god. Now he has personally destroyed all the gods of the heavens, demolished three thousand towers, and fallen into demonic ways overnight.

Everyone says Lou Boshang has become a mad dog that no one can restrain, bringing a bloody storm in his wake.

But can someone tell her why Lou Boshang, who hates her to the bone, wants to marry her memorial tablet?

P.S. 1. One-on-one romance, happy ending.

2. Social-anxiety girl tames a dog. The male lead is born evil, not remotely normal.

Theme: Evil deeds bring evil consequences