Because she had already become a fierce ghost, she could touch physical objects. The female ghost easily took a large amount of dead blood from her own body, which had not yet been cremated.
She dried this dead blood, ground it into powder, and then handed it to Ma Lele, telling Ma Lele the method to help her harm others. Eager to rid herself of the female ghost, Ma Lele agreed; her first target was Ding Yue!
Originally, although Ma Lele agreed to help harm people, she was always reluctant to actually do it. Having grown up law-abiding, she hadn't even killed a chicken or a fish before! How could she dare help a ghost take a human life?
At first, the female ghost didn't rush Ma Lele, only occasionally causing her trouble to apply some pressure. She enjoyed watching Ma Lele fall deeper into depravity under her coercion!