InuYasha, realizing that the Netherworld is the grave of his father Inu no Taisho, goes to see Myoga, who tells him that he must go to see Hosenki in order to visit the Netherworld. After climbing a cliff, InuYasha encounters Hakudoshi, who is aware of who Hosenki is. InuYasha and his companions soon meet Hosenki, whose father has died of old age. Even though his father was the creator of the Black Pearl in InuYasha's right, Hosenki is only the apprentice as such. Kagura appears to InuYasha's group saying that the pathway to the Netherworld is found in a gateway within the Mountain in the Realm of Fire.