If I remember correctly, it should be episode 87: the lonely journey around Platycodon grandiflorum. Platycodon grandiflorum is looking for the whereabouts of the evil semi-demon Naraku, and at the same time, it is exorcising the demons for the residents along the way. On the way, Platycodon grandiflorum met a wild thief-Luo Cha Ghost, who was old and weak. In the conversation, Platycodon grandiflorum learned the cause and effect of Onigumo, a wild thief, appearing in her life (Luo Cha ghost had an old love affair with Onigumo, and Onigumo used Luo Cha ghost, so Luo Cha ghost lost his eyes and held a grudge, so Luo Cha ghost set fire to Onigumo's fooling around hall, but the ghost spider survived, and the Russian ghost threw him off the cliff and landed in Platycodon grandiflorum's village. . . . Luo Cha's ghost is going to die soon, but she regrets all the sins she committed before her death, so she cut off her hair and entrusted it to Platycodon grandiflorum with the jade pieces of the four souls, so that she could take her hair to Bailing Mountain, where the soul of Luo Cha's ghost could be redeemed. So by chance, Platycodon grandiflorum embarked on the road to the mysterious Bailing Mountain. . . .