Board Thread:Questions and Answers/@comment-29781768-20170826175552/@comment-44796386-20200514175224

I had the same idea, but magic exists in the world of Re:Zero, possibly making everything possible and we don't know how the time travel would work, through travelling in the past a different timeline from the one the time traveller came from could be created, making the time traveller an independent individual not affected by the death of his/her counterpart on the current timeline.

I don't like the theory either but who knows what will happen in the future