"But if a ghost lingers in this world for a long time, will it gradually transform into a curse?"
"Hmm…" Faced with Virgil's inquiry, William answered, "That statement is not very precise. In most cases, the harmlessness of a ghost does not change over time. Truly fearsome evil spirits are dangerous from the very beginning. For example, a ghoul is not something that becomes such after a person dies."
"Born that way…?"
William continued to explain, "Christian culture offers a good reference for this. That is the notion that men are born with sin. In religion, demons represent innate and pure evil."
"So it's not that ghosts turn into demons?"
"At least most of the cases we encounter are not like that." William went on, "What our hospital needs to treat is mostly evil rooted in 'darkness' itself."
"Darkness itself?"
