Leveling up in Dystopia

Shihab is an average guy who dropped out of high school after his father left his family. He did so to support his younger siblings and his sick mother. One day, after his boss forced him to work extra hours, he was attacked by zombies. He escaped from the factory and jumped from roof to roof to survive, but he eventually fell and broke his leg. Surrounded by zombies and desperate, he made a last wish: to survive and reunite with his family. Suddenly, a system screen flashed before him and gave him a choice: to survive and become a hunter, or to reject the offer and die."