The widespread weakness of the other three heroes, who failed to distinguish themselves on the previous wave, forces the Queen of Melromarc to bring in experienced mentors to train them. Of course, the heroes don’t like it. But Naofumi uses the opportunity not only to level up the newcomers of his party, but also to significantly improve Raftalia’s and Firo’s combat skills. Very soon, they will have to test these skills in a fight against an incredibly strong opponent.