Psychoport: Sinners system is the First guardian / Psycho-Pass: Sinners of the System Case.2 - First Guardian (№ 382958)

- You're possessed by an evil spirit, in the Western part of this Kingdom pelvic bones of the deceased were cut with an axe, if the dead man has some unfinished business in this world, he became an evil spirit of Lhorong. The bones were cut in order to avoid this. Evil spirits have a past. Future events, spirits do not occur. You wanted revenge. So you chose a life for the dead. Why you are not able to stay in Japan., when you got revenge. You live to kill me. And it skillfully used. To live under the yoke of a dead man - the same as to be obsessed by the spirit.
Not all the events of the past are evil.
You're right Kagami Signa.