Demon Slayer: Kimetsu no Yaiba Season 1 Episode 17
You Must Master a Single Thing
One of the Twelve Kizuki, a direct subordinate of Muzan Kibutsuji, is here somewhere. When Tanjiro slays the Mother Spider Demon of Mt. Natagumo, he learns that a demon who might hold the key to turning Nezuko back into a human is somewhere in this very forest. With the battered Inosuke in tow, he heads deeper into the forest. Meanwhile, Zenitsu trudges forlornly through the woods only to encounter a spider with a human face.
Guest Stars
Showtaro Morikubo
Spider Demon (Elder Brother) (voice)
Yoshimasa Hosoya
Zenitsu's Senior Pupil (voice)
Shigeru Chiba
Zenitsu's Master (voice)
Tetsu Inada
Spider Demon (Father) (voice)
Ryoko Shiraishi
Spider Demon (Elder Sister) (voice)