The loss of the gods' protection has ushered in a new era, giving the remaining humans a chance to rebuild. However, for the members of Sanshu Middle School's Hero Club, this newfound freedom came with a heavy price - one that they paid after fulfilling their duties to Taisha. In the year 298 of the Divine Era, Mebuki Kusunoki worked tirelessly to become the next hero, only to be defeated by Karin Miyoshi. The decision of Taisha left Mebuki angry and disappointed. Two years later, Mebuki was appointed as the commander of the Sentinels, whose mission was to explore uncharted territories beyond the barrier. But their journey was fraught with unexpected dangers, endangering innocent lives. Despite the odds, Mebuki was determined to prove herself as a hero and vowed to bring everyone back alive, no matter what the cost.