Global S-Class Acid Rain: I Am Living in the Apocalypse

In the despair of the end of the world, I was miraculously reborn and returned to the day before the global acid rain came. I know that this will be a special acid rain disaster, which is corrosive enough to make people miserable. Now that God has given me a chance to come back, I will definitely change my destiny! Without hesitation, I sold all my assets and spent everything I had on building an impenetrable safe house. I purchased supplies like crazy, and food, water, and medical supplies piled up like mountains. Employing the strongest craftsmen and using the strongest materials, the safe house is equipped with the most advanced defense systems. When the acid rain poured down and the world fell into chaos and despair, I was content in my safe house. Looking at the people outside the house struggling in the acid rain, I felt extremely happy. In this end of the world, I take advantage of my rebirth to become the king who controls my own destiny, and start an exciting journey of survival! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.