The episode's title refers to the contrast between Rui's "forged bonds" of terror and hatred and the genuine sibling bond between Tanjiro and Nezuko. Enraged by Rui's treatment of his family, Tanjiro challenges the powerful Lower Rank Five demon.
Tanjiro and Inosuke struggle against the overwhelming strength of the massive Father Spider Demon. Tanjiro attempts a powerful strike but is physically hurled away, leaving an injured Inosuke to fight alone. 18 : A Forged Bond
After being thrown across the mountain, Tanjiro lands near a river and witnesses the young demon Rui cruelly torturing his "sister". The episode's title refers to the contrast between
