Trainer Sakonji Urokodaki

Tanjiro and Nezuko make their way toward Mt. Sagiri when they encounter a demon residing in a nearby temple. They manage to successfully restrain it, but he finds himself hesitant to kill it, leaving it to burn in the sunlight. At this time, he meets Sakonji Urokodaki, who chastises him for his poor resolve and warns him about what will happen if Nezuko decides to kill a human. After letting Nezuko rest, Urokodaki puts Tanjiro through a test to prove his worthiness by climbing up and descending the hazardous and trap-infested Mt. Sagiri. Tanjiro succeeds in the task, and after recalling the letter from Giyu requesting him to train Tanjiro to become a Demon Slayer, Urokodaki accepts him as his student.