Heroes of Marvel - Chapter 19: CAPTAIN AMERICA AND WINTER SOLDIER

DING!![You killed a Level 3 Mutant Zombie for the first time!]-----DING!![You have crossed the limit of humanity! Entering the mutation stage!]-----DING!![Congratulations, user! You are now a being beyond human beings!]-----Being a good person cost him his life. When death sent him back, he vowed to take revenge and finish the job.Behind the icy cold that grips the world and the red light that fills the sky day and night, he must defy the zombie apocalypse.A safe house, unlimited food and drink, every conceivable weapon and a system to help him... But he has only two things on his mind: Survival and revenge.

I lived for you in the last lifetime, everything I did was for you, yet you wanted me to die; so, this time, life is mine to live! This world lied to me, betrayed me, and humiliated me, and I am back to change everything!

- Description from Novelupdates

Qin Tian accidentally transmigrated into a sickly body, a body with broken Dantian that was unable to practice Qigong, in another world. Fortunately, God had mercy on him by giving him a level up system. Useless? That was him in the past. Not worrying about practicing Qigong, he was now able to kill Monsters to level up. Easy! Level up when killing Monsters; level up when killing people. An unbeatable sovereign of the clan in the eyes of other people, but in his eyes, he is a glittering big BOSS.

With this level up system, he will no longer encounter any bottlenecks during a breakthrough in cultivation like other geniuses; all he needs to do was kill as many monsters, clan heads, sovereigns, world experts … to have a better life.

Dedicating his life on a road to become an expert.

- Description from Novelupdates