Life Simulation: I Caused the Female Sword Immortal to Regret Forever - Chapter 123:

No family, no power, no inheritance — a thrice-lacking protagonist. Just how will the seed rise up from the mud?

- Description from Novelupdates

Warning: This novel contains explicit adult content, violence, and a ruthless anti-hero MC. Read at your own risk.I was the strongest player in the world—until they betrayed me.When I woke up, I wasn’t a player anymore. I was just an NPC. A nameless mob, doomed to be farmed for EXP and discarded like trash.But then, I heard it:(You have been killed.)(Unique Skill Activated: Infinite Resurrection.)(Each death makes you stronger.)Every time a player slaughters me, I steal their stats, their skills, and their power. I evolve beyond the system’s control, beyond the limits of this world.They thought I was nothing.They thought they could use me, farm me, erase me.Now, I am the final boss—and I will make them suffer.On the battlefield, and in my bed.They will submit. One way or another.

The Great Yan Empire exists in a world where respect can only be earned through strength. Within this Great Yan Empire, the four great clans have always stood above the rest. Among them, a particular incident in the Lin Clan resulted in the banishment of a certain individual who went on to start his own family, in hopes of one day being recognized again by the Lin Clan, and rejoining them...

Hailing from a banished family of the Great Lin Clan, when Lin Dong was very young, he watched, powerless, as his talented father was easily crushed and crippled by the overwhelming genius of the great Lin Clan, Lin Langtian.

With a despairing father, a heartbroken grandfather, and a suffering family, ever since that fateful day, Lin Dong has been driven by a deep purpose; to take revenge on the man who had taken everything and more from his family.

Armed with nothing but willpower and determination, join Lin Dong as he unknowingly discovers a destiny greater than he could ever hope to imagine when he stumbles upon a mysterious stone talisman...

“I want to be a true demon.”

A boy not older than 20 years wished as he looked at the sky.

After suffering from the trauma for many years, he finally gave up on life.

People called him ugly, demon, and hideous.

He bared with it, but today he finally broke.

With a piercing pain in his chest, he died.

When opened his eyes, Logan found himself in another world and inside the body of a demon.

His wish was granted, but at what cost?

He had no power and was the lowest among the demons.

No one to help, no one to be with him.

But it did not affect Logan. Because he had something else with him.

‘Sin and Virtue System.’

Guiding him towards his goal to become a true Demon.

Logan’s conquest has begun, so be a part of it.

Otherwise, you will miss him.

The true Demon!

However, is the MC the 'only' one to have a system?

Hm?

Read the fucking novel and find out!