Thousand-year ghost country, death forbidden zone? Who is causing a series of deaths. Princess Xixi? Inca dynasty? They walked together and supported each other along the way. There were dangers everywhere, but they used their wisdom to resolve them one by one. It seems like a dream but not a dream, can the professor's parting joke come true, and can they, who are in the ghost kingdom, return as kings... (Serialized in this book)