How to Win Over an Obsessive Demon Lord

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Pei Li transmigrated into a book, a tragic story where everyone dies at the hands of the villain.

Her mission is to stop the villain from destroying the world and change the tragic ending for everyone.

By day, Hang Si is the head of a family of talisman cultivators. In secret, he's the mastermind behind a plan to destroy the world.

The good news: The character Pei Li transmigrated into is the daughter of a friend of Hang Si's parents, and she calls him "Brother."

The bad news: As a child, this younger sister was extremely mischievous and often played pranks on Hang Si. She once roasted the fish he had carefully raised, mixed bitter melon juice into his milk, and tricked him into eating sour fruit...

The even worse news: Hang Si remembers every single one of those childhood incidents.

Pei Li is at a loss: ...I would have been better off transmigrating into a stranger.

On one hand, she has to be a good younger sister to the righteous Brother Hang, doing her best to put the childhood grudge over that roasted fish to rest and make sure he doesn't kill her before he destroys the world.

On the other, she has to be the great villain's life coach and fan, doing her best to lead him toward goodness and make him abandon his plan to destroy the world.

Pei Li switches roles to keep up with him every day, so busy she can barely catch her breath.

With the righteous Hang Si:

Pei Li, full of affection: "The person I love most in this world is Brother Zeyi. Even though we haven't seen each other in years, I miss you more with every passing day, Brother Zeyi. So, would you marry me someday?"

Hang Si thinks for a long time, then curls his lips into a smile. "All right."

With the great villain:

Pei Li becomes a devoted fan. "My Lord Priest is so valiant and heroic that I can't help falling for you. It would be the greatest honor of my life to marry someone as noble and upright, and as devoted to fighting evil, as you."

Hang Si's strange gaze peers through his mask. He asks tentatively, "Then shall I marry you?"

Pei Li covers her face coyly. "Th-this... It's so sudden! I'm so embarrassed. Should we pick an auspicious day?"

Hang Si freezes for a moment, then falls into deep suspicion: Who does this woman actually like?

Pei Li leisurely cracks a handful of sunflower seeds: When you get ruthless, you even have to eat your own gossip.

Hang Si keeps changing his mind, sometimes convinced, sometimes not.

When his lovesick side takes over: No matter who I become, she still likes me. She must feel something special for me.

In his rare moments of clarity: How can she like two people at once? Does she like someone besides me? This liar.

When you get ruthless, you even get jealous of yourself.

Then Hang Si grits his teeth and accepts Pei Li's "flirtatiousness." He'll see how long this liar can keep up the act.

Pei Li: Until you stop pretending.

*

He plays two roles with painstaking dedication, convinced his younger sister doesn't know. In fact, she knows perfectly well.

Pei Li: My brother is such an idiot.

On every sleepless night, Hang Si tosses and turns in bed: How many people does Zhuoyun like? How can I make her like only me?

(Zhuoyun is Pei Li's courtesy name, and Zeyi is Hang Si's courtesy name.)

Novel blurb:

On the surface, Si Boqian fights demons and protects the righteous way, earning the admiration of countless people. He also has the most beautiful face in the world. But in reality... he's the greatest demon of all.

Everyone on the righteous side fears and hates him, and wants him dead, but no one can kill him.

Wen Xijin's mission after she transmigrates into a book is to win over this sick and twisted demon whom everyone fears.

At the start of her mission:

Wen Xijin accidentally touches his body. The great demon smiles like a spring breeze, but slowly grips his sword hilt. "Which hand touched me? Cut it off, and you won't have to die."

Some time later:

He realizes that because of this woman, he has broken his principles again and again, lost control again and again, and become like a madman with unstable emotions. He suddenly presses his sword against Wen Xijin's neck. "Did you use some kind of witchcraft on me to make me lose control?"

By the end of her mission:

He pulls Wen Xijin into his arms. His clear, lustrous eyes conceal boundless longing, and he wishes he could fuse her flesh and blood with his own. "Don't leave me. I don't have much self-control. I'll go mad."

The great demon is invincible in battle. In the past, he single-handedly massacred the entire Demon Palace, killed the Demon Lord, and took the Demon Lord's throne as countless demons knelt before him. He then ordered the people of the demon realm to call him the Demon Venerable.

The Demon Venerable, who kills without blinking, is now willing to prostrate himself before her, putting her life above his own and submitting to her every command.

So, if he goes mad...

In his arms, Wen Xijin is panicking. Her mission is to... kill him.

--Si Boqian isn't the villain, but he's even worse than one.--

Theme: Treat others kindly