They Say That If “Suffering” Ever Comes to an End, I… Will Be the “Savior” 他们说，若「苦难」终有尽头，我…便是「救世主」

I’m looking for books similar to Honkai: Star Rail: National Destiny, Playing Phainon and Shocking Bai Yue Kui. They said that if “suffering” ever comes to an end, then I… must be the “savior.” But why is there… “nothing behind me” now? “This must be a different kind of wave…”