Villain Is Bodyguard of Heroine's Poisonous Stepmother - Chapter 3: Can’t beat a mere protagonist?

The author named me Wei Changcheng, also known as Wei Great Wall.
I really defended the Great Wall. I managed to climb the Great Wall extravagantly, but I was squeezed down from the Great Wall. Even if I crossed it, what kind of trouble did I have to attach a system?
It’s fine to have a system as a bonus, but what kind of trouble is it going to be annoying wherever it goes?
“In Harmony…”
What? You still have to “eat” the system? Have a lot to eat? I’ll just call you an idiot from now on!
What? You want to be my partner? “In Harmony…”! Why are you pressing me? Hehehehe, my original form can climb trees, can you?

Solemnly declare:
1 The third person in this article, please ignore if the copywriting is incompetent.
2 The main subject of this article, 1V1, CP has been determined, Daniel V Wei Changcheng
3 This article is sweet pet, loyal dog attack, as for receiving attribute, well, to be determined…
4 This article is also called “The system of rebirth is in hand, I have the world” or “Happy and happy life of the host on the planet”
5 The author is occasionally insane, please ignore it.

Content tags: harmony made in heaven soft spot system farming text
Search keywords: Protagonist: Wei Changcheng ┃ Supporting role: Daniel ┃ Others:

- Description from novelbuddy

She, a modern hidden ghost leader of an organization which gathered insane prodigies proficient in the various differing skill-sets. Highly skilled in medicine and poison, executes covert assassinations, viewed as insane and demonic in the eyes of people of the world. Killed in an accident, and reborn into the body of a disfigured young girl.

What? Face disfigured, identity stolen? A return to the family dim and hopeless? Her identity can be given up, her family can be forgone, but as for the one who harmed her predecessor who inhabited this same body, if she didn’t at least make them scream in unimaginable agony and throw them into a state of wretchedness, how could she live up to her demonic reputation? Endless turmoil ensues and it’s a battle to dominate over all! See how she shook the world dressed in a suit of red, her sword up against the dominant powers that rocked the Heavens! Her name spread across the seas, shocking the earth!

- Description from Novelupdates

Sara Fujiharu, the cutest girl in the school, is also known as the 'Seatmate Bully'. Every few weeks, the class seating changes and every time, Fujiharu-san gets a new target. What's her goal? To make the boy sitting next to her fall in love, and once she does, she destroys their heart, crushing their love.

Why does she do this? I still don't know.

It's March 23rd, the day of the seating change. So far, ten boys have fallen for her traps, her playful attitude, her innocent face, not a single boy so far has managed to brush off her attacks-and every single time, their weak hearts have been crushed.

Now it's my turn.

However, my heart is not so easily played with.