Here's an Opportunity

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?"

Original Novel:
KakaoPage, Ridibooks, MrBlue, Onestory, Nate, Joara

Official Translations:
English