DoubleHush

On an ordinary day, a wave of dark energy swept across the globe, plunging humanity into an apocalypse of unimaginable horror.  
Amid the chaos, Grey, a reserved and unassuming accountant, is thrust into a nightmarish world overrun by zombies, mutated beasts, and eldritch creatures from beyond.  
Awakening a mysterious system, Grey discovers the ability to level up and grow stronger. Armed with his strategic mind and an unyielding determination to survive, he defies the odds, carving a path through the dangers that surround him.  
As his unique powers grow, Grey becomes humanity's last hope—and a terrifying threat to the otherworldly forces sowing fear and chaos. But Grey doesn't just face these creatures; he hunts them relentlessly, turning the apocalypse into his battlefield and every victory into a step toward ultimate power.

New Power