Red Stone

"I remember every detail of my dream vividly." He replied.

"Good, it might be useful for us on the night of a full moon." Ling Xao said. 

"If this curse is not eliminated on the full moon night, then will me and Hye Min immediately die?"

"Not immediately but eventually you will, someday. The curse will be stronger if it is not eliminated."

"Why are you doing all of this for us?" Park Hye Min asked Ling Xao. He got emotional when he looked at her but he immediately composed himself and said, "Out of humanity"

Lee Ji Woon and Park Hye Min didn't believe him but they understood he can't answer this question so they didn't force him to talk.

"I am sorry Park Hye Min, I am not a fairy like I claimed. I am just a ghost" Song Ji Woo hesitated but she finally confessed the truth.