I Can Make Countless Mistakes, but You Only Get One Chance

[Kill the Wicked to Gain Lives: Kill One Evil Person, Earn One Life] [Written entirely by hand by an experienced author, with zero AI in the main text.]

Fearless protagonist + satisfying power fantasy + behind-the-scenes scheming + ruthless protagonist + revival and impersonation + emotion-driven story

Chen Shuo transmigrates to another world and, the moment he arrives, is forced by the Black Fiend Gang to sign a contract enslaving him to work in the coal mines.

Thus begins Chen Shuo's new life in another world: mining coal, eating slop, and being thrown to the demon beasts if he fails to meet his quota.

He grits his teeth and endures for a month. Just when he's about to give up, he finally awakens the System: the Kill the Wicked to Gain Lives System. Kill an evil person, and earn one life.

Using this System, he first bites the one-star villain who betrayed him with his own big yellow teeth, gaining an extra life and making his first step toward building up a stockpile of lives.

He uses one death to escape the Black Fiend Gang's control once and for all.

But he doesn't leave their territory. He exploits the System's ability to change his appearance when he comes back to life, transforming his face and build into the Black Fiend Gang leader's, then begins his frenzied revenge.

While the gang leader is away, he eats the leader's food, takes the leader's treasures, commands the leader's men, and beats the leader's enemies.

By the time the real leader returns,

his subordinates are all dead, his home has been stripped bare, and his enemies are at the gates.

And that "leader" is standing atop the city wall, smiling at him.

When you've got lives to spare, you can do whatever you want.