Princess Resurrection - S01

Hiyorimi Hiro relocates to a new city to live with his older sister but tragically dies before he can reunite with her. He awakens in the Monster Realm, where he becomes the servant of a princess-who, by chance, has already hired his sister. As a contender for the throne, the princess faces constant threats from other monsters. Now, Hiro must defend her, even if it means dying over and over again. The story is adapted from Mitsunaga Yasunori's manga, originally serialized in "Monthly Shounen Sirius".