Complex sentence: Originally made into a Killing Goods owner by Iwai's father so that Iwai's hair can be cut, following his death her intention changed to killing Iwai to have her wish granted for her father's revival, mostly due to her jealousy of Iwai.
Split into simpler sentences: Originally made into a Killing Goods owner by Iwai's father so that Iwai's hair can be cut. Following his death, Emily's intention changed to killing Iwai so she could wish for her father's revival, mostly out of jealousy of Iwai.