C876 Yin Imprisoning Paper

When I heard that, I asked, "Third Uncle, if this Yin Imprisoning Paper has the ability to trap ghosts, then why do we need to spend so much effort to make a few red Yin Imprisoning Paper?"

Third Uncle looked at me and said, "If it was that easy, then there would be no more ghosts in this world. The grey and red Yin Imprisoning Paper is something from the underworld