The anime adapts author Tappei Nagatsuki and illustrator Shinichirou Otsuka’s Re:Zero light novel series.
Yen Press is publishing the light novel series in English, and is also releasing Daichi Matsuse’s manga adaptation of the series, as well as the Re:Zero Ex spinoff light novel series.
Crunchyroll is also streaming both the Re:Zero ~Starting Break Time From Zero~ and Re:PETIT ~Starting Life in Another World from PETIT~ short anime spinoff series.
He then finds out he has the power to rewind death, back to the time he first came to this world.