Every failed save is another chance to make a comeback! Dying helplessly time and again had broken Subaru Natsuki’s spirit, but Rem’s words gave him the strength to stand up once more. Now, using what he has learned thanks to Return by Death, Subaru drags royal candidates Crusch and Anastasia into a desperate hunt for the White Whale in order to save Emilisa. Many have gathered to defeat the Demon Beast of Mist, which has plagued the world for more than four centuries, including the beast-man mercenary group Iron Fangs, seasoned veterans yearning for vengeance, and a certain Sword Devil who is overjoyed that this moment has finally come…