The NPC sets out to defeat the demon king - Chapter 10

System, “You have a sickness. Moreover, you’ll have one in every world.”

Hao Ritian, “…”

System, “What’s wrong? Is there a problem?”

Hao Ritian smiled, “No, there’s no problem. I was just a bit excited.”

System, “…”

That smile intensified the system’s feeling of ominous foreboding. It has had this premonition since it learned the name of its host. Now it only prays that this is all its imagination!

Ps: Protagonist shou 1v1, the gong is always the same person.

- Description from Novelupdates

Memories surged like a tide into her head after she was reincarnated, and she found out who she was… A complete pushover. Her name was Beiting Huang, a direct descendant and third-generation descendant of the Beiting Dynasty. Her fearsome reputation stretched across all nations on the continent. She was a girl, but she was disguised as a boy for some reason. Everyone was also after her wrist… to hack it off and take the bracelet she wore, which was actually a high-level spiritual item that concealed her gender.

Everyone included her own brothers. Her brothers were fighting and killing each other, tearing the dynasty apart in the process… and she happened to be caught in the crossfire.

Mercy? Did the old Beiting Huang not beg before she died? Did they spare her when she did? An emotion that was not hers stirred within her body, and Beiting Huang knew it was the old Beiting Huang’s grief.

In her mind, she assured her: Don’t worry. Since I’ve reincarnated in your body, I shall avenge you. Your death will not be senseless! After those words, the old Beiting Huang’s emotions faded.

Now, there was only one Beiting Huang. She was the underworld’s king, a mercenary lord who slaughtered and plundered with the world at her feet. Reincarnated into the fearsome Beiting family as its ‘useless’ ninth son, the world’s riches were once again in her grasp. She cultivated impossible abilities, contracted with magical beasts, and possessed a mystical dimension. She also trampled over gods and demons as and when she liked. Cold and handsome, her very presence was proud and magnificent, causing the world to fight for her affection.

The most unlike Slytherin.

There is a saying in the Slytherin common room, “The little wizard who disobeys will be eaten by the Night Stalker.”

He is the master of the stars that shines at Hogwarts, the Night Stalker who is feared by his enemies.

The glory made him the pride of Slytherin.

When the Dark Lord arrived, he said those words,

“Weapons, I need a lot of weapons.”

With a staff in his left hand and a sword in his right hand, everyone would shout for him: “Damn the Sorting Hat, is this Slytherin?”

When the stars return to Hogwarts, John Wick’s light will shine on the entire wizarding world.

- Description from novelbuddy

Quinn Winter is a young man from another world. One day, he is suddenly chosen to become the new Demon King. But the Demon Kingdom is in big trouble – it's losing a terrible war against the human kingdom called Gran'le.To help his people, Quinn comes up with a risky plan. He will sneak into Gran'le and learn their secrets. But things don’t go as planned. A powerful noble sponsors him, and he ends up joining Heavenward Academy, the top school for training future heroes.At the Academy, there's a big challenge called the Selection. The best students become Paladins – magic knights who fight demons. Quinn doesn’t want to become a Paladin. He is a demon king! But now, he’s stuck in the Selection… and if he wins, he’ll become the very thing he’s supposed to destroy.He started the day badly. Now, things are getting even worse.