Story
A helpless boy gets his hands on the power to rewind time after dying, 'Return by Death'.

On his way home from the convenience store, a boy named Subaru Natsuki is suddenly summoned to another world.
In this alternate world with nothing for him to rely on, the only power the helpless boy has in his hands is...... the power to rewind time after dying,《Return by Death》.
In order to protect the people he cares about, and to reclaim the irreplaceable time that was once his, the boy resists despair and confronts his harsh fate.