The Invincible Apocalypse Mechanic

I earned 10,000 a month, and a gold-digging woman publicly humiliated me, saying, “You're not even fit to carry my shoes.” The very next second, a wealthy heiress slapped five million down in front of me. “I believe in you. Marry me.” I thought my luck with women had finally turned, but a few months later, a mechanical voice suddenly rang inside my head: [Welcome to Cultivation Chamber No. 77777777] [Warning: Target “Su Xiaoyu” is entangled with numerous threads of fate…] [Apocalypse countdown: 365 days] Who was she, really? Why did the System contain memories of us across three lifetimes? When nuclear bombs laid waste to the world and the entire planet became a wasteland, I hid inside the cultivation chamber and stared at the icy command on the mission panel: [Mission: Rescue Su Xiaoyu (Attempt No. 7)] At last, I understood. I would have to repay this five-million “dowry” with my life.