Rhapsody from Another World from the Beginning

Duanmu Nian, who watched Re:0, really traveled to a different world of "sword and magic" at one point. This is not a fairy tale about a brave man defeating a demon king or a dragon and then embracing a beautiful woman, but a completely strange world. He cannot save when he travels to another world, and will return to the original starting point every time he dies. Death, retrospect, death, retrospect, death, retrospect... Until the end of time. "Death archiving", this is Duan Munian's ability, Duan Munian's curse, regardless of birth, old age, illness or death, no matter where you are, as long as you die, you will archive immediately... Eternal reincarnation, eternal punishment, eternal no relief...?