I Left my A-Rank Party to Help My Former Students Reach the Dungeon Depths!

As the danger of the Culling approaches, Yuke is chosen by The Golden Priestess to become the Hero. Together with Zaccard and the members of Fullbound, he ventures deeper into a new dungeon in hopes of saving the world. But Zaccard, burdened by his responsibility to the city of Duna, falls prey to the corrupting influence of the Setting Sun and his own growing sense of inferiority. Before long, he turns against Yuke, his very own ally. As the dangerous monsters of the new dungeon close in from all sides, Yuke, haunted by regrets over his late friend Simon, faces off against Zaccard in a fierce clash!

Chosen as the Hero destined to avert the crisis of the Culling, Yuke sets out to uncover records of the kingdom where Rune once lived. As he learns the secrets of Rune's family and witnesses the kingdom's gradual downfall, Yuke gains a clue to defeating the Setting Sun, the force consuming the world. But upon returning from his journey into the past, he finds one of his companions has fallen into critical condition under the influence of the Setting Sun. With the aid of some of the world's strongest adventurers, Clover charges into the final battle to save humanity!

To save the world from being consumed by the threat of the Culling, Yuke and his party challenge Zaccard, who has been granted power by the Gold, and finally face King Vordan, their last and greatest enemy! Against the king’s reality-shattering attack, Clover fights desperately on the brink of annihilation. As comrades fall one after another, Yuke must find the strength to save Rune in captivity, protect his battered companions, and prevent the world’s destruction. The Hero’s greatest battle to save humanity reaches its climactic conclusion!