My Childhood Friend Is Actually a Monster Tyrant

Blurb One

After transmigrating into a book and spending more than a decade there, Yu Pei finally receives her long-delayed mission from the System:

[Play the role of a supporting female character, then win over the original novel's villain, Su Zhan. Do that, and you can shatter the void and return to the modern world.]

Yu Pei: Got it!

Su Zhan is cruel and twisted, with a murderous nature, and is regarded as a monster by the world. Countless cultivators from the four realms have joined forces to hunt him down for over a decade, yet they still couldn't destroy him completely. All they could do was seal away his heart for the time being.

After countless trials and tribulations, Yu Pei finally finds the monster's heart on Demon Mountain.

It's a fluffy little ball.

Yu Pei: ?

The System warns her: “Host, don't let its cute appearance fool you! It's actually cruel, vicious, and terrifying! It doesn't matter if it takes a while to win it over. We've got all the time in the world.”

As soon as it finishes speaking, the fluffy ball curls up and burrows into Yu Pei's arms on its own. A suspicious blush shows through its pitch-black fur.

Fluffy ball: Squeak squeak o(*≧+3≦)o

System: ?! Where did this dog come from?

Yu Pei: Damn it! Where's the cruelty? Where's the viciousness? And where's a sack when you need one?

-

After finally getting the heart off Demon Mountain, Yu Pei is stopped on the way by her childhood friend, Zhu Yu.

Zhu Yu looks considerate as he says, “You broke up with me and ran away from home. Was that because you were looking for someone else?”

Before Yu Pei can answer, she catches sight of a tentacle peeking out from beneath his robe. It's exactly like the fluffy ball's little appendages.

Yu Pei, pupils dilating in shock: Oh no! I think I've stumbled on a huge secret.

“I wonder if it's the young master of the Ghost Realm who guards the mountain, the half-demon who stays by your side, or perhaps the fellow disciple you've recently met.”

The young man remains calm, but a glint of gold appears in his eyes, along with a wild, vicious glimmer.

In the half-light, vine-shaped mist begins to coil around Yu Pei's waist. He strokes the back of her neck with a low laugh, his breath burning hot.

“Tell me, besides your senior brother, who else does Peipei want?

“Don't worry. I won't touch him.”

Yu Pei: ...Could you put down the sword in your hand first?

Blurb Two

To rack up attack points, Yu Pei takes on the role of a villain.

She provokes the young master of the Ghost Realm, who guards the heart, day after day, goading him into drawing his sword. He's naturally aloof, and is always scolding her for breaking the rules and telling her to leave Demon Mountain.

Yu Pei thinks he can't stand her, but when her sect falsely accuses her, he actually makes an exception and leaves Demon Mountain for her, with countless ghosts wailing behind him.

“If my master's name isn't cleared today, then I'll have no choice but to reclaim justice with my sword.”

Yu Pei: ? Who's your master?

-

Yu Pei spends every day dragging the gentle, considerate original heroine to the training grounds and sends her a challenge every three days. The original heroine doesn't refuse, but every time she seems hesitant, as if there's something she wants to say.

Yu Pei assumes she doesn't like training, until the original heroine's family demands she return home to take over the family business. The girl takes Yu Pei's hand and firmly refuses.

“My ambitions lie elsewhere. Peipei is the only one who truly understands me.”

Yu Pei: ...What does she think I understand?

-

Yu Pei takes on a powerful, two-faced half-demon who's both hypocritical and heartless, making him question his own sanity. Every day, he's desperate to kill her.

Yu Pei thinks he sees her as an enemy, but when the Lord of the Three Realms tries to form a demon pact with him, he quietly refuses.

“I have already acknowledged my master. The pact is carved into my soul. From now on, my life is bound to my master, Yu Pei.”

Yu Pei: No, wait! Isn't something wrong here?!

Reader's Guide:

1. 1v1 romance: a quick-witted genius spirit cultivator who loves to crack jokes x her childhood friend, a villain who's sweet on the outside and dark within

2. Half plot, half romance, with a touch of ensemble cast and straightforward writing

3. The heroine is irresistible to everyone. She has many admirers, with a bit of male rivalry

Theme: When you act for the people's benefit, it's righteousness; when you act for the benefit of generations to come, it's virtue.