The Terminally Ill Young Master is the Mad Dog of the Underworld - Chapter 31

When I was reborn in South Korea, I wanted to live my life in peace. Pass the activation system, unlock the 'Big Brother' career, obtain the invincible system, and embark on the road to power

My brother* and I, from elementary school to university, had grown up together. We didn’t just get into the same degree, we’re also sharing the same dormitory room.

In a world where strength reigns supreme, Leon Xian was nothing but a cripple, mocked and humiliated by his peers. Betrayed, abandoned, and cast aside—his fate seemed sealed.Until he awakened the Limitless Copy System.Steal any talent. Copy any technique. Master any power.With a single touch, he rises from the depths of mediocrity to stand above geniuses. The arrogant elites who once looked down on him? He crushes them with their own techniques. The noble beauty who broke off their engagement? Now, she regrets it.From a sect’s laughingstock to an unstoppable force, Leon’s journey has just begun. Enemies will kneel, beauties will fall, and legends will be rewritten.Watch as the trash becomes invincible!

Joseph Knox, one of the most prolific and well-known serial killers on the planet.A person considered so demented and manic that even trying to reason with him was believed to be a waste of time. A man so far gone that he seemingly didn't deserve any pity even on his deathbed.So why? Why would a man like him receive a second chance? And why did the world around him seem so familiar?Disclaimer: AU when it comes to some parts of Madara's plan(I'll try to make it make sense at least), and aliens don't exist in this world