Reborn in the Apocalypse, I Begin by Slaughtering Zombies to Gamble My Lifespan and Become Invincible

A sudden apocalyptic disaster sweeps across the entire world. Once-peaceful cities and seas are overrun in an instant, becoming lands ravaged by zombies and ferocious beasts. At the same time, as the world falls into turmoil, secret realms appear across the planet, revealing traces of ancient, mysterious civilizations… Zhang Fan, abandoned by his family and left to die, opens his eyes to find himself reborn in the early days of the apocalypse, on July 7, 2052. He also gains the ability to grow stronger by spending his lifespan to simulate zombie kills. [You have killed an early-stage infected zombie. Total lifespan: 67 years. Remaining lifespan: 14 years. Absorption complete!] [In the first year, you train hard, and the muscles in your limbs become lean and powerful.] [In the tenth year, your physical abilities have surpassed those of ordinary people.] In this life, Zhang Fan is determined to make everyone who once let him down pay the price, and to live a life unlike any other…