Demon Slayer: Kimetsu No Yaiba Vol. 16 (manga)

Tanjiro goes to see the Stone Hashira, Himejima, who intends to prepare him for the battles to come. The training to become a Hashira--a high-ranking member of the Demon Slayer Corps--is intense and demanding, and earning Himejima's approval seems impossible, but Tanjiro won't give up! Meanwhile, the demon lord Muzan continues to search for the location of Nezuko and Ubuyashiki.