The Number One Outlaw in the Universe: My System Can Slay Gods

To pay for his younger sister's leukemia treatment, Su Chen has no choice but to take someone else's place in prison in exchange for one million yuan. By a stroke of luck, he activates the "God-Tier Little Rogue System" while behind bars. The System tells him that he must complete all kinds of missions to earn powerful abilities and rewards, and that failure means death. To stay alive and make money, Su Chen has no choice but to endure the System's trials and complete one high-difficulty mission after another...