In the Apocalypse, I Start with a Shelter

One day, the sun turned deep red, and scarlet, blood-colored acid rain poured furiously down upon the earth. Humanity was caught off guard and suffered devastating losses. The sky shattered, the ground cracked, and zombies ran rampant. People struggled to survive. A young man obtained an invincible shelter. As long as he was inside, he could sign in each day and receive an endless variety of rewards. He fought monsters, leveled up, and slowly set out on the path to the universe.

This novel and its characters are entirely fictional. Any resemblance to actual people or events is purely coincidental. Do not imitate.