I have a bunch of players on Earth - Chapter 43

The wrong way to act as a villain no.1: Get rid of the protagonist while he still hasn’t become powerful.

The wrong way to act as a villain no.2: Take the limelight from the protagonist at the key moment.

The wrong way to act as a villain no.3: Make the protagonist fall in love with you, thus making him incapable of completing the final step – eliminating the major villain.

Han Changsheng, Head of the Demonic Cult, is the major villain who’s employed all three incorrect methods.

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As the leader of the first Demonic Cult in the underground world of martial arts and cultivation, Tianning Cult, Han Changsheng carried on the long-standing tradition of an unstable mind and a refusal to seek any treatment.

Originally, his life should have passed by quickly and simply, but one day he kicked a descended Immortal Lord off a cliff. In order to make up for this mistake, he must aid the Immortal Lord in ascending back to his position… but why does this mistake keep growing? Hey, lao zi doesn’t need you as a younger brother, you should look for An Yuan! Don’t chase after lao zi, you’re destined to be An Yuan’s wife! Don’t worship lao zi as a martial arts lord, lao zi is the genuine leader of the Demonic Cult! Hey, Hey lao zi is obviously the major villain! What the hell are you doing?!

- Description from Novelupdates

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.

Mo Ran felt that taking Chu Wanning as his master was a mistake.

Wen TianHe originally thought he was a man who’s going to be a domineering chairman. But in the end, he became the man alongside the domineering chairman.

The sharp edge of a knife is difficult to cross; thus the wise man said that the path to salvation will be hard.
—Mao Mu, (Blade)

The blade of a sword must be sad for its lack in friendship. Because no matter whom it wants to give a hug, the other would be divided into two.
—Vietnamese Overbearing Chairman, Si Guan (Silence is Golden)

- Description from Novelupdates