Apocalypse Unbound

On an ordinary day, a wave of dark energy blasted through the entire world, bringing it into an apocalypse of unimaginable proportions.

Amid the chaos, Grey, an introverted accountant, is thrust into a world filled with zombies, mutated beasts, and outer-worldly creatures

He awakens the system and uses its power to level up. Using his strategic mind and his determination to survive, he thrives in this chaotic world, now filled with dangers, rising consistently in strength and defying the odds.

His unique abilities eventually become humanity's lifeline and a threat to outer worldly forces.
Forces that breed fear and chaos but Grey brazenly hunts them down all in the name of levelling up!