Yan Sagawa is the top academic master in the world of Conan, known as a national treasure talent. No one knows that he is actually a time traveler, carrying the most powerful Xueba system. But he also has troubles recently, and he has awakened a second system — the Great Onmyoji system. Whether to believe in science and become the father of all mankind or believe in theology to become the god who controls reincarnation, this is a question . . . After thinking for a long time, he decided that he wanted them all! Conan: This is impossible murder! Is there really a ghost? Sagawa Yan looked at the shikigami flying in the sky and smiled without saying a word. Kidd: What kind of magic is this, how could you hide it from my eyes. Sagawa said: This is science, you scumbag