Post-apocalyptic World: Stockpile Ten Billion Supplies at the Beginning - Chapter 29

An ultimate warrior, the one and only Alchemy Emperor, Ling Han, died in his quest to achieve godhood. Ten thousands years later, he, with the ‘Invincible Heaven Scroll’, was reborn in the body of a young man with the same name. From then on, winds and clouds moved as he set himself against the uncountable geniuses of this new era. His path of becoming a legend has begun once more. Of all eras underneath the heavens, I am the strongest!

- Description from Novelupdates

One day, I woke up only find out that I’d become a Demon Lord, an individual responsible for protecting a dungeon. The world I’d been spirited away to was one filled with violence. Gigantic monsters wandered through it and competed with each other each and every day for the right to survive. I had no choice but to strengthen my dungeon’s defenses in hopes of living another day—or at least that was what I’d thought. For some odd reason, I instead ended up spending my days in relaxation and bliss.

After 20 years of dedicating his life to opera ever since he had quit the performing arts high school, he had failed at an interview. Losing his motivations, Jo Yunjae depended on alcohol to live out his days until one day, he had been sent back 20 years in time, to the day before his high school admission.

I’ll give you an opportunity—but not for free.Gates have opened all over Earth, unleashing hordes of monsters from other dimensions. Humanity stands on the brink of extinction, with only ten years left until the end of Earth as it is.With my awakened skills, Record and Time Rabbit’s Luggage, I’ve spent seventy-six lifetimes trudging through these grueling regressions. The repetition ends here, on this Attempt.But it’s unfair if I’m the only one suffering, right? So let’s share the burden.“Ah, don’t sweat it! I’ll give you a good opportunity. For what you’re getting, it’s a bargain, don’t you think?”