Doomsday System: I Want to Defeat All Enemies

My name is Zhang San, and I was just an ordinary employee of a company. But one day the computer swallowed me up, and I came to this world where the end was coming - another world. The doomsday system was automatically activated with my arrival. Poor and humble, I first faced all kinds of terrifying zombies, and the enemies I met later were even more difficult to deal with. But I want to live on and become stronger step by step... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.