I Left my A-Rank Party to Help My Former Students Reach the Dungeon Depths! Volume 11

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!